MS-DRG · FY 2026 v43.0

MS-DRG 594 – Skin Ulcers without CC/MCC

A Medical DRG in MDC 09 (Diseases & Disorders of the Skin, Subcutaneous Tissue & Breast). Inpatient cases group to DRG 594 when the ICD-10-CM principal diagnosis is one of the 479 codes listed below and no secondary diagnosis on the CC or MCC lists is present. Its FY 2026 relative weight is 0.8668 with a geometric mean length of stay of 3.2 days.

Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
0.8668
Relative Weight
3.2
Geometric Mean LOS (days)
4.1
Arithmetic Mean LOS (days)
479
Principal Diagnosis Codes

Severity family

DRG 592with MCCWeight 1.9353 · GMLOS 5.7 daysDRG 593with CCWeight 1.1863 · GMLOS 4.2 daysDRG 594without CC/MCCWeight 0.8668 · GMLOS 3.2 days
How a case is assigned to DRG 594

The grouper first assigns the case to MDC 09 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here), then applies the severity split from secondary diagnoses: with MCC → 592; with CC → 593; without CC/MCC → 594.

ICD-10-CM

Principal Diagnosis Codes 479 codes · 3 categories

479 of 479 shown
L89 Pressure ulcer175 codes
  • L89.000 Pressure ulcer of unspecified elbow, unstageable
  • L89.001 Pressure ulcer of unspecified elbow, stage 1
  • L89.002 Pressure ulcer of unspecified elbow, stage 2
  • L89.003 Pressure ulcer of unspecified elbow, stage 3
  • L89.004 Pressure ulcer of unspecified elbow, stage 4
  • L89.006 Pressure-induced deep tissue damage of unspecified elbow
  • L89.009 Pressure ulcer of unspecified elbow, unspecified stage
  • L89.010 Pressure ulcer of right elbow, unstageable
  • L89.011 Pressure ulcer of right elbow, stage 1
  • L89.012 Pressure ulcer of right elbow, stage 2
  • L89.013 Pressure ulcer of right elbow, stage 3
  • L89.014 Pressure ulcer of right elbow, stage 4
  • L89.016 Pressure-induced deep tissue damage of right elbow
  • L89.019 Pressure ulcer of right elbow, unspecified stage
  • L89.020 Pressure ulcer of left elbow, unstageable
  • L89.021 Pressure ulcer of left elbow, stage 1
  • L89.022 Pressure ulcer of left elbow, stage 2
  • L89.023 Pressure ulcer of left elbow, stage 3
  • L89.024 Pressure ulcer of left elbow, stage 4
  • L89.026 Pressure-induced deep tissue damage of left elbow
  • L89.029 Pressure ulcer of left elbow, unspecified stage
  • L89.100 Pressure ulcer of unspecified part of back, unstageable
  • L89.101 Pressure ulcer of unspecified part of back, stage 1
  • L89.102 Pressure ulcer of unspecified part of back, stage 2
  • L89.103 Pressure ulcer of unspecified part of back, stage 3
  • L89.104 Pressure ulcer of unspecified part of back, stage 4
  • L89.106 Pressure-induced deep tissue damage of unspecified part of back
  • L89.109 Pressure ulcer of unspecified part of back, unspecified stage
  • L89.110 Pressure ulcer of right upper back, unstageable
  • L89.111 Pressure ulcer of right upper back, stage 1
  • L89.112 Pressure ulcer of right upper back, stage 2
  • L89.113 Pressure ulcer of right upper back, stage 3
  • L89.114 Pressure ulcer of right upper back, stage 4
  • L89.116 Pressure-induced deep tissue damage of right upper back
  • L89.119 Pressure ulcer of right upper back, unspecified stage
  • L89.120 Pressure ulcer of left upper back, unstageable
  • L89.121 Pressure ulcer of left upper back, stage 1
  • L89.122 Pressure ulcer of left upper back, stage 2
  • L89.123 Pressure ulcer of left upper back, stage 3
  • L89.124 Pressure ulcer of left upper back, stage 4
  • L89.126 Pressure-induced deep tissue damage of left upper back
  • L89.129 Pressure ulcer of left upper back, unspecified stage
  • L89.130 Pressure ulcer of right lower back, unstageable
  • L89.131 Pressure ulcer of right lower back, stage 1
  • L89.132 Pressure ulcer of right lower back, stage 2
  • L89.133 Pressure ulcer of right lower back, stage 3
  • L89.134 Pressure ulcer of right lower back, stage 4
  • L89.136 Pressure-induced deep tissue damage of right lower back
  • L89.139 Pressure ulcer of right lower back, unspecified stage
  • L89.140 Pressure ulcer of left lower back, unstageable
  • L89.141 Pressure ulcer of left lower back, stage 1
  • L89.142 Pressure ulcer of left lower back, stage 2
  • L89.143 Pressure ulcer of left lower back, stage 3
  • L89.144 Pressure ulcer of left lower back, stage 4
  • L89.146 Pressure-induced deep tissue damage of left lower back
  • L89.149 Pressure ulcer of left lower back, unspecified stage
  • L89.150 Pressure ulcer of sacral region, unstageable
  • L89.151 Pressure ulcer of sacral region, stage 1
  • L89.152 Pressure ulcer of sacral region, stage 2
  • L89.153 Pressure ulcer of sacral region, stage 3
  • L89.154 Pressure ulcer of sacral region, stage 4
  • L89.156 Pressure-induced deep tissue damage of sacral region
  • L89.159 Pressure ulcer of sacral region, unspecified stage
  • L89.200 Pressure ulcer of unspecified hip, unstageable
  • L89.201 Pressure ulcer of unspecified hip, stage 1
  • L89.202 Pressure ulcer of unspecified hip, stage 2
  • L89.203 Pressure ulcer of unspecified hip, stage 3
  • L89.204 Pressure ulcer of unspecified hip, stage 4
  • L89.206 Pressure-induced deep tissue damage of unspecified hip
  • L89.209 Pressure ulcer of unspecified hip, unspecified stage
  • L89.210 Pressure ulcer of right hip, unstageable
  • L89.211 Pressure ulcer of right hip, stage 1
  • L89.212 Pressure ulcer of right hip, stage 2
  • L89.213 Pressure ulcer of right hip, stage 3
  • L89.214 Pressure ulcer of right hip, stage 4
  • L89.216 Pressure-induced deep tissue damage of right hip
  • L89.219 Pressure ulcer of right hip, unspecified stage
  • L89.220 Pressure ulcer of left hip, unstageable
  • L89.221 Pressure ulcer of left hip, stage 1
  • L89.222 Pressure ulcer of left hip, stage 2
  • L89.223 Pressure ulcer of left hip, stage 3
  • L89.224 Pressure ulcer of left hip, stage 4
  • L89.226 Pressure-induced deep tissue damage of left hip
  • L89.229 Pressure ulcer of left hip, unspecified stage
  • L89.300 Pressure ulcer of unspecified buttock, unstageable
  • L89.301 Pressure ulcer of unspecified buttock, stage 1
  • L89.302 Pressure ulcer of unspecified buttock, stage 2
  • L89.303 Pressure ulcer of unspecified buttock, stage 3
  • L89.304 Pressure ulcer of unspecified buttock, stage 4
  • L89.306 Pressure-induced deep tissue damage of unspecified buttock
  • L89.309 Pressure ulcer of unspecified buttock, unspecified stage
  • L89.310 Pressure ulcer of right buttock, unstageable
  • L89.311 Pressure ulcer of right buttock, stage 1
  • L89.312 Pressure ulcer of right buttock, stage 2
  • L89.313 Pressure ulcer of right buttock, stage 3
  • L89.314 Pressure ulcer of right buttock, stage 4
  • L89.316 Pressure-induced deep tissue damage of right buttock
  • L89.319 Pressure ulcer of right buttock, unspecified stage
  • L89.320 Pressure ulcer of left buttock, unstageable
  • L89.321 Pressure ulcer of left buttock, stage 1
  • L89.322 Pressure ulcer of left buttock, stage 2
  • L89.323 Pressure ulcer of left buttock, stage 3
  • L89.324 Pressure ulcer of left buttock, stage 4
  • L89.326 Pressure-induced deep tissue damage of left buttock
  • L89.329 Pressure ulcer of left buttock, unspecified stage
  • L89.40 Pressure ulcer of contiguous site of back, buttock and hip, unspecified stage
  • L89.41 Pressure ulcer of contiguous site of back, buttock and hip, stage 1
  • L89.42 Pressure ulcer of contiguous site of back, buttock and hip, stage 2
  • L89.43 Pressure ulcer of contiguous site of back, buttock and hip, stage 3
  • L89.44 Pressure ulcer of contiguous site of back, buttock and hip, stage 4
  • L89.45 Pressure ulcer of contiguous site of back, buttock and hip, unstageable
  • L89.46 Pressure-induced deep tissue damage of contiguous site of back, buttock and hip
  • L89.500 Pressure ulcer of unspecified ankle, unstageable
  • L89.501 Pressure ulcer of unspecified ankle, stage 1
  • L89.502 Pressure ulcer of unspecified ankle, stage 2
  • L89.503 Pressure ulcer of unspecified ankle, stage 3
  • L89.504 Pressure ulcer of unspecified ankle, stage 4
  • L89.506 Pressure-induced deep tissue damage of unspecified ankle
  • L89.509 Pressure ulcer of unspecified ankle, unspecified stage
  • L89.510 Pressure ulcer of right ankle, unstageable
  • L89.511 Pressure ulcer of right ankle, stage 1
  • L89.512 Pressure ulcer of right ankle, stage 2
  • L89.513 Pressure ulcer of right ankle, stage 3
  • L89.514 Pressure ulcer of right ankle, stage 4
  • L89.516 Pressure-induced deep tissue damage of right ankle
  • L89.519 Pressure ulcer of right ankle, unspecified stage
  • L89.520 Pressure ulcer of left ankle, unstageable
  • L89.521 Pressure ulcer of left ankle, stage 1
  • L89.522 Pressure ulcer of left ankle, stage 2
  • L89.523 Pressure ulcer of left ankle, stage 3
  • L89.524 Pressure ulcer of left ankle, stage 4
  • L89.526 Pressure-induced deep tissue damage of left ankle
  • L89.529 Pressure ulcer of left ankle, unspecified stage
  • L89.600 Pressure ulcer of unspecified heel, unstageable
  • L89.601 Pressure ulcer of unspecified heel, stage 1
  • L89.602 Pressure ulcer of unspecified heel, stage 2
  • L89.603 Pressure ulcer of unspecified heel, stage 3
  • L89.604 Pressure ulcer of unspecified heel, stage 4
  • L89.606 Pressure-induced deep tissue damage of unspecified heel
  • L89.609 Pressure ulcer of unspecified heel, unspecified stage
  • L89.610 Pressure ulcer of right heel, unstageable
  • L89.611 Pressure ulcer of right heel, stage 1
  • L89.612 Pressure ulcer of right heel, stage 2
  • L89.613 Pressure ulcer of right heel, stage 3
  • L89.614 Pressure ulcer of right heel, stage 4
  • L89.616 Pressure-induced deep tissue damage of right heel
  • L89.619 Pressure ulcer of right heel, unspecified stage
  • L89.620 Pressure ulcer of left heel, unstageable
  • L89.621 Pressure ulcer of left heel, stage 1
  • L89.622 Pressure ulcer of left heel, stage 2
  • L89.623 Pressure ulcer of left heel, stage 3
  • L89.624 Pressure ulcer of left heel, stage 4
  • L89.626 Pressure-induced deep tissue damage of left heel
  • L89.629 Pressure ulcer of left heel, unspecified stage
  • L89.810 Pressure ulcer of head, unstageable
  • L89.811 Pressure ulcer of head, stage 1
  • L89.812 Pressure ulcer of head, stage 2
  • L89.813 Pressure ulcer of head, stage 3
  • L89.814 Pressure ulcer of head, stage 4
  • L89.816 Pressure-induced deep tissue damage of head
  • L89.819 Pressure ulcer of head, unspecified stage
  • L89.890 Pressure ulcer of other site, unstageable
  • L89.891 Pressure ulcer of other site, stage 1
  • L89.892 Pressure ulcer of other site, stage 2
  • L89.893 Pressure ulcer of other site, stage 3
  • L89.894 Pressure ulcer of other site, stage 4
  • L89.896 Pressure-induced deep tissue damage of other site
  • L89.899 Pressure ulcer of other site, unspecified stage
  • L89.90 Pressure ulcer of unspecified site, unspecified stage
  • L89.91 Pressure ulcer of unspecified site, stage 1
  • L89.92 Pressure ulcer of unspecified site, stage 2
  • L89.93 Pressure ulcer of unspecified site, stage 3
  • L89.94 Pressure ulcer of unspecified site, stage 4
  • L89.95 Pressure ulcer of unspecified site, unstageable
  • L89.96 Pressure-induced deep tissue damage of unspecified site
L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified168 codes
  • L97.101 Non-pressure chronic ulcer of unspecified thigh limited to breakdown of skin
  • L97.102 Non-pressure chronic ulcer of unspecified thigh with fat layer exposed
  • L97.103 Non-pressure chronic ulcer of unspecified thigh with necrosis of muscle
  • L97.104 Non-pressure chronic ulcer of unspecified thigh with necrosis of bone
  • L97.105 Non-pressure chronic ulcer of unspecified thigh with muscle involvement without evidence of necrosis
  • L97.106 Non-pressure chronic ulcer of unspecified thigh with bone involvement without evidence of necrosis
  • L97.108 Non-pressure chronic ulcer of unspecified thigh with other specified severity
  • L97.109 Non-pressure chronic ulcer of unspecified thigh with unspecified severity
  • L97.111 Non-pressure chronic ulcer of right thigh limited to breakdown of skin
  • L97.112 Non-pressure chronic ulcer of right thigh with fat layer exposed
  • L97.113 Non-pressure chronic ulcer of right thigh with necrosis of muscle
  • L97.114 Non-pressure chronic ulcer of right thigh with necrosis of bone
  • L97.115 Non-pressure chronic ulcer of right thigh with muscle involvement without evidence of necrosis
  • L97.116 Non-pressure chronic ulcer of right thigh with bone involvement without evidence of necrosis
  • L97.118 Non-pressure chronic ulcer of right thigh with other specified severity
  • L97.119 Non-pressure chronic ulcer of right thigh with unspecified severity
  • L97.121 Non-pressure chronic ulcer of left thigh limited to breakdown of skin
  • L97.122 Non-pressure chronic ulcer of left thigh with fat layer exposed
  • L97.123 Non-pressure chronic ulcer of left thigh with necrosis of muscle
  • L97.124 Non-pressure chronic ulcer of left thigh with necrosis of bone
  • L97.125 Non-pressure chronic ulcer of left thigh with muscle involvement without evidence of necrosis
  • L97.126 Non-pressure chronic ulcer of left thigh with bone involvement without evidence of necrosis
  • L97.128 Non-pressure chronic ulcer of left thigh with other specified severity
  • L97.129 Non-pressure chronic ulcer of left thigh with unspecified severity
  • L97.201 Non-pressure chronic ulcer of unspecified calf limited to breakdown of skin
  • L97.202 Non-pressure chronic ulcer of unspecified calf with fat layer exposed
  • L97.203 Non-pressure chronic ulcer of unspecified calf with necrosis of muscle
  • L97.204 Non-pressure chronic ulcer of unspecified calf with necrosis of bone
  • L97.205 Non-pressure chronic ulcer of unspecified calf with muscle involvement without evidence of necrosis
  • L97.206 Non-pressure chronic ulcer of unspecified calf with bone involvement without evidence of necrosis
  • L97.208 Non-pressure chronic ulcer of unspecified calf with other specified severity
  • L97.209 Non-pressure chronic ulcer of unspecified calf with unspecified severity
  • L97.211 Non-pressure chronic ulcer of right calf limited to breakdown of skin
  • L97.212 Non-pressure chronic ulcer of right calf with fat layer exposed
  • L97.213 Non-pressure chronic ulcer of right calf with necrosis of muscle
  • L97.214 Non-pressure chronic ulcer of right calf with necrosis of bone
  • L97.215 Non-pressure chronic ulcer of right calf with muscle involvement without evidence of necrosis
  • L97.216 Non-pressure chronic ulcer of right calf with bone involvement without evidence of necrosis
  • L97.218 Non-pressure chronic ulcer of right calf with other specified severity
  • L97.219 Non-pressure chronic ulcer of right calf with unspecified severity
  • L97.221 Non-pressure chronic ulcer of left calf limited to breakdown of skin
  • L97.222 Non-pressure chronic ulcer of left calf with fat layer exposed
  • L97.223 Non-pressure chronic ulcer of left calf with necrosis of muscle
  • L97.224 Non-pressure chronic ulcer of left calf with necrosis of bone
  • L97.225 Non-pressure chronic ulcer of left calf with muscle involvement without evidence of necrosis
  • L97.226 Non-pressure chronic ulcer of left calf with bone involvement without evidence of necrosis
  • L97.228 Non-pressure chronic ulcer of left calf with other specified severity
  • L97.229 Non-pressure chronic ulcer of left calf with unspecified severity
  • L97.301 Non-pressure chronic ulcer of unspecified ankle limited to breakdown of skin
  • L97.302 Non-pressure chronic ulcer of unspecified ankle with fat layer exposed
  • L97.303 Non-pressure chronic ulcer of unspecified ankle with necrosis of muscle
  • L97.304 Non-pressure chronic ulcer of unspecified ankle with necrosis of bone
  • L97.305 Non-pressure chronic ulcer of unspecified ankle with muscle involvement without evidence of necrosis
  • L97.306 Non-pressure chronic ulcer of unspecified ankle with bone involvement without evidence of necrosis
  • L97.308 Non-pressure chronic ulcer of unspecified ankle with other specified severity
  • L97.309 Non-pressure chronic ulcer of unspecified ankle with unspecified severity
  • L97.311 Non-pressure chronic ulcer of right ankle limited to breakdown of skin
  • L97.312 Non-pressure chronic ulcer of right ankle with fat layer exposed
  • L97.313 Non-pressure chronic ulcer of right ankle with necrosis of muscle
  • L97.314 Non-pressure chronic ulcer of right ankle with necrosis of bone
  • L97.315 Non-pressure chronic ulcer of right ankle with muscle involvement without evidence of necrosis
  • L97.316 Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosis
  • L97.318 Non-pressure chronic ulcer of right ankle with other specified severity
  • L97.319 Non-pressure chronic ulcer of right ankle with unspecified severity
  • L97.321 Non-pressure chronic ulcer of left ankle limited to breakdown of skin
  • L97.322 Non-pressure chronic ulcer of left ankle with fat layer exposed
  • L97.323 Non-pressure chronic ulcer of left ankle with necrosis of muscle
  • L97.324 Non-pressure chronic ulcer of left ankle with necrosis of bone
  • L97.325 Non-pressure chronic ulcer of left ankle with muscle involvement without evidence of necrosis
  • L97.326 Non-pressure chronic ulcer of left ankle with bone involvement without evidence of necrosis
  • L97.328 Non-pressure chronic ulcer of left ankle with other specified severity
  • L97.329 Non-pressure chronic ulcer of left ankle with unspecified severity
  • L97.401 Non-pressure chronic ulcer of unspecified heel and midfoot limited to breakdown of skin
  • L97.402 Non-pressure chronic ulcer of unspecified heel and midfoot with fat layer exposed
  • L97.403 Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of muscle
  • L97.404 Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of bone
  • L97.405 Non-pressure chronic ulcer of unspecified heel and midfoot with muscle involvement without evidence of necrosis
  • L97.406 Non-pressure chronic ulcer of unspecified heel and midfoot with bone involvement without evidence of necrosis
  • L97.408 Non-pressure chronic ulcer of unspecified heel and midfoot with other specified severity
  • L97.409 Non-pressure chronic ulcer of unspecified heel and midfoot with unspecified severity
  • L97.411 Non-pressure chronic ulcer of right heel and midfoot limited to breakdown of skin
  • L97.412 Non-pressure chronic ulcer of right heel and midfoot with fat layer exposed
  • L97.413 Non-pressure chronic ulcer of right heel and midfoot with necrosis of muscle
  • L97.414 Non-pressure chronic ulcer of right heel and midfoot with necrosis of bone
  • L97.415 Non-pressure chronic ulcer of right heel and midfoot with muscle involvement without evidence of necrosis
  • L97.416 Non-pressure chronic ulcer of right heel and midfoot with bone involvement without evidence of necrosis
  • L97.418 Non-pressure chronic ulcer of right heel and midfoot with other specified severity
  • L97.419 Non-pressure chronic ulcer of right heel and midfoot with unspecified severity
  • L97.421 Non-pressure chronic ulcer of left heel and midfoot limited to breakdown of skin
  • L97.422 Non-pressure chronic ulcer of left heel and midfoot with fat layer exposed
  • L97.423 Non-pressure chronic ulcer of left heel and midfoot with necrosis of muscle
  • L97.424 Non-pressure chronic ulcer of left heel and midfoot with necrosis of bone
  • L97.425 Non-pressure chronic ulcer of left heel and midfoot with muscle involvement without evidence of necrosis
  • L97.426 Non-pressure chronic ulcer of left heel and midfoot with bone involvement without evidence of necrosis
  • L97.428 Non-pressure chronic ulcer of left heel and midfoot with other specified severity
  • L97.429 Non-pressure chronic ulcer of left heel and midfoot with unspecified severity
  • L97.501 Non-pressure chronic ulcer of other part of unspecified foot limited to breakdown of skin
  • L97.502 Non-pressure chronic ulcer of other part of unspecified foot with fat layer exposed
  • L97.503 Non-pressure chronic ulcer of other part of unspecified foot with necrosis of muscle
  • L97.504 Non-pressure chronic ulcer of other part of unspecified foot with necrosis of bone
  • L97.505 Non-pressure chronic ulcer of other part of unspecified foot with muscle involvement without evidence of necrosis
  • L97.506 Non-pressure chronic ulcer of other part of unspecified foot with bone involvement without evidence of necrosis
  • L97.508 Non-pressure chronic ulcer of other part of unspecified foot with other specified severity
  • L97.509 Non-pressure chronic ulcer of other part of unspecified foot with unspecified severity
  • L97.511 Non-pressure chronic ulcer of other part of right foot limited to breakdown of skin
  • L97.512 Non-pressure chronic ulcer of other part of right foot with fat layer exposed
  • L97.513 Non-pressure chronic ulcer of other part of right foot with necrosis of muscle
  • L97.514 Non-pressure chronic ulcer of other part of right foot with necrosis of bone
  • L97.515 Non-pressure chronic ulcer of other part of right foot with muscle involvement without evidence of necrosis
  • L97.516 Non-pressure chronic ulcer of other part of right foot with bone involvement without evidence of necrosis
  • L97.518 Non-pressure chronic ulcer of other part of right foot with other specified severity
  • L97.519 Non-pressure chronic ulcer of other part of right foot with unspecified severity
  • L97.521 Non-pressure chronic ulcer of other part of left foot limited to breakdown of skin
  • L97.522 Non-pressure chronic ulcer of other part of left foot with fat layer exposed
  • L97.523 Non-pressure chronic ulcer of other part of left foot with necrosis of muscle
  • L97.524 Non-pressure chronic ulcer of other part of left foot with necrosis of bone
  • L97.525 Non-pressure chronic ulcer of other part of left foot with muscle involvement without evidence of necrosis
  • L97.526 Non-pressure chronic ulcer of other part of left foot with bone involvement without evidence of necrosis
  • L97.528 Non-pressure chronic ulcer of other part of left foot with other specified severity
  • L97.529 Non-pressure chronic ulcer of other part of left foot with unspecified severity
  • L97.801 Non-pressure chronic ulcer of other part of unspecified lower leg limited to breakdown of skin
  • L97.802 Non-pressure chronic ulcer of other part of unspecified lower leg with fat layer exposed
  • L97.803 Non-pressure chronic ulcer of other part of unspecified lower leg with necrosis of muscle
  • L97.804 Non-pressure chronic ulcer of other part of unspecified lower leg with necrosis of bone
  • L97.805 Non-pressure chronic ulcer of other part of unspecified lower leg with muscle involvement without evidence of necrosis
  • L97.806 Non-pressure chronic ulcer of other part of unspecified lower leg with bone involvement without evidence of necrosis
  • L97.808 Non-pressure chronic ulcer of other part of unspecified lower leg with other specified severity
  • L97.809 Non-pressure chronic ulcer of other part of unspecified lower leg with unspecified severity
  • L97.811 Non-pressure chronic ulcer of other part of right lower leg limited to breakdown of skin
  • L97.812 Non-pressure chronic ulcer of other part of right lower leg with fat layer exposed
  • L97.813 Non-pressure chronic ulcer of other part of right lower leg with necrosis of muscle
  • L97.814 Non-pressure chronic ulcer of other part of right lower leg with necrosis of bone
  • L97.815 Non-pressure chronic ulcer of other part of right lower leg with muscle involvement without evidence of necrosis
  • L97.816 Non-pressure chronic ulcer of other part of right lower leg with bone involvement without evidence of necrosis
  • L97.818 Non-pressure chronic ulcer of other part of right lower leg with other specified severity
  • L97.819 Non-pressure chronic ulcer of other part of right lower leg with unspecified severity
  • L97.821 Non-pressure chronic ulcer of other part of left lower leg limited to breakdown of skin
  • L97.822 Non-pressure chronic ulcer of other part of left lower leg with fat layer exposed
  • L97.823 Non-pressure chronic ulcer of other part of left lower leg with necrosis of muscle
  • L97.824 Non-pressure chronic ulcer of other part of left lower leg with necrosis of bone
  • L97.825 Non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis
  • L97.826 Non-pressure chronic ulcer of other part of left lower leg with bone involvement without evidence of necrosis
  • L97.828 Non-pressure chronic ulcer of other part of left lower leg with other specified severity
  • L97.829 Non-pressure chronic ulcer of other part of left lower leg with unspecified severity
  • L97.901 Non-pressure chronic ulcer of unspecified part of unspecified lower leg limited to breakdown of skin
  • L97.902 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with fat layer exposed
  • L97.903 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of muscle
  • L97.904 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of bone
  • L97.905 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with muscle involvement without evidence of necrosis
  • L97.906 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with bone involvement without evidence of necrosis
  • L97.908 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with other specified severity
  • L97.909 Non-pressure chronic ulcer of unspecified part of unspecified lower leg with unspecified severity
  • L97.911 Non-pressure chronic ulcer of unspecified part of right lower leg limited to breakdown of skin
  • L97.912 Non-pressure chronic ulcer of unspecified part of right lower leg with fat layer exposed
  • L97.913 Non-pressure chronic ulcer of unspecified part of right lower leg with necrosis of muscle
  • L97.914 Non-pressure chronic ulcer of unspecified part of right lower leg with necrosis of bone
  • L97.915 Non-pressure chronic ulcer of unspecified part of right lower leg with muscle involvement without evidence of necrosis
  • L97.916 Non-pressure chronic ulcer of unspecified part of right lower leg with bone involvement without evidence of necrosis
  • L97.918 Non-pressure chronic ulcer of unspecified part of right lower leg with other specified severity
  • L97.919 Non-pressure chronic ulcer of unspecified part of right lower leg with unspecified severity
  • L97.921 Non-pressure chronic ulcer of unspecified part of left lower leg limited to breakdown of skin
  • L97.922 Non-pressure chronic ulcer of unspecified part of left lower leg with fat layer exposed
  • L97.923 Non-pressure chronic ulcer of unspecified part of left lower leg with necrosis of muscle
  • L97.924 Non-pressure chronic ulcer of unspecified part of left lower leg with necrosis of bone
  • L97.925 Non-pressure chronic ulcer of unspecified part of left lower leg with muscle involvement without evidence of necrosis
  • L97.926 Non-pressure chronic ulcer of unspecified part of left lower leg with bone involvement without evidence of necrosis
  • L97.928 Non-pressure chronic ulcer of unspecified part of left lower leg with other specified severity
  • L97.929 Non-pressure chronic ulcer of unspecified part of left lower leg with unspecified severity
L98 Other disorders of skin and subcutaneous tissue, not elsewhere classified136 codes
  • L98.411 Non-pressure chronic ulcer of buttock limited to breakdown of skin
  • L98.412 Non-pressure chronic ulcer of buttock with fat layer exposed
  • L98.413 Non-pressure chronic ulcer of buttock with necrosis of muscle
  • L98.414 Non-pressure chronic ulcer of buttock with necrosis of bone
  • L98.415 Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis
  • L98.416 Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis
  • L98.418 Non-pressure chronic ulcer of buttock with other specified severity
  • L98.419 Non-pressure chronic ulcer of buttock with unspecified severity
  • L98.421 Non-pressure chronic ulcer of back limited to breakdown of skin
  • L98.422 Non-pressure chronic ulcer of back with fat layer exposed
  • L98.423 Non-pressure chronic ulcer of back with necrosis of muscle
  • L98.424 Non-pressure chronic ulcer of back with necrosis of bone
  • L98.425 Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis
  • L98.426 Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis
  • L98.428 Non-pressure chronic ulcer of back with other specified severity
  • L98.429 Non-pressure chronic ulcer of back with unspecified severity
  • L98.431 Non-pressure chronic ulcer of abdomen limited to breakdown of skin
  • L98.432 Non-pressure chronic ulcer of abdomen with fat layer exposed
  • L98.433 Non-pressure chronic ulcer of abdomen with necrosis of muscle
  • L98.434 Non-pressure chronic ulcer of abdomen with necrosis of bone
  • L98.435 Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosis
  • L98.436 Non-pressure chronic ulcer of abdomen with bone involvement without evidence of necrosis
  • L98.438 Non-pressure chronic ulcer of abdomen with other specified severity
  • L98.439 Non-pressure chronic ulcer of abdomen with unspecified severity
  • L98.441 Non-pressure chronic ulcer of chest limited to breakdown of skin
  • L98.442 Non-pressure chronic ulcer of chest with fat layer exposed
  • L98.443 Non-pressure chronic ulcer of chest with necrosis of muscle
  • L98.444 Non-pressure chronic ulcer of chest with necrosis of bone
  • L98.445 Non-pressure chronic ulcer of chest with muscle involvement without evidence of necrosis
  • L98.446 Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosis
  • L98.448 Non-pressure chronic ulcer of chest with other specified severity
  • L98.449 Non-pressure chronic ulcer of chest with unspecified severity
  • L98.451 Non-pressure chronic ulcer of neck limited to breakdown of skin
  • L98.452 Non-pressure chronic ulcer of neck with fat layer exposed
  • L98.453 Non-pressure chronic ulcer of neck with necrosis of muscle
  • L98.454 Non-pressure chronic ulcer of neck with necrosis of bone
  • L98.455 Non-pressure chronic ulcer of neck with muscle involvement without evidence of necrosis
  • L98.456 Non-pressure chronic ulcer of neck with bone involvement without evidence of necrosis
  • L98.458 Non-pressure chronic ulcer of neck with other specified severity
  • L98.459 Non-pressure chronic ulcer of neck with unspecified severity
  • L98.461 Non-pressure chronic ulcer of face limited to breakdown of skin
  • L98.462 Non-pressure chronic ulcer of face with fat layer exposed
  • L98.463 Non-pressure chronic ulcer of face with necrosis of muscle
  • L98.464 Non-pressure chronic ulcer of face with necrosis of bone
  • L98.465 Non-pressure chronic ulcer of face with muscle involvement without evidence of necrosis
  • L98.466 Non-pressure chronic ulcer of face with bone involvement without evidence of necrosis
  • L98.468 Non-pressure chronic ulcer of face with other specified severity
  • L98.469 Non-pressure chronic ulcer of face with unspecified severity
  • L98.471 Non-pressure chronic ulcer of groin limited to breakdown of skin
  • L98.472 Non-pressure chronic ulcer of groin with fat layer exposed
  • L98.473 Non-pressure chronic ulcer of groin with necrosis of muscle
  • L98.474 Non-pressure chronic ulcer of groin with necrosis of bone
  • L98.475 Non-pressure chronic ulcer of groin with muscle involvement without evidence of necrosis
  • L98.476 Non-pressure chronic ulcer of groin with bone involvement without evidence of necrosis
  • L98.478 Non-pressure chronic ulcer of groin with other specified severity
  • L98.479 Non-pressure chronic ulcer of groin with unspecified severity
  • L98.491 Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin
  • L98.492 Non-pressure chronic ulcer of skin of other sites with fat layer exposed
  • L98.493 Non-pressure chronic ulcer of skin of other sites with necrosis of muscle
  • L98.494 Non-pressure chronic ulcer of skin of other sites with necrosis of bone
  • L98.495 Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosis
  • L98.496 Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosis
  • L98.498 Non-pressure chronic ulcer of skin of other sites with other specified severity
  • L98.499 Non-pressure chronic ulcer of skin of other sites with unspecified severity
  • L98.A111 Non-pressure chronic ulcer of right upper arm limited to breakdown of skin
  • L98.A112 Non-pressure chronic ulcer of right upper arm with fat layer exposed
  • L98.A113 Non-pressure chronic ulcer of right upper arm with necrosis of muscle
  • L98.A114 Non-pressure chronic ulcer of right upper arm with necrosis of bone
  • L98.A115 Non-pressure chronic ulcer of right upper arm with muscle involvement without evidence of necrosis
  • L98.A116 Non-pressure chronic ulcer of right upper arm with bone involvement without evidence of necrosis
  • L98.A118 Non-pressure chronic ulcer of right upper arm with other specified severity
  • L98.A119 Non-pressure chronic ulcer of right upper arm with unspecified severity
  • L98.A121 Non-pressure chronic ulcer of left upper arm limited to breakdown of skin
  • L98.A122 Non-pressure chronic ulcer of left upper arm with fat layer exposed
  • L98.A123 Non-pressure chronic ulcer of left upper arm with necrosis of muscle
  • L98.A124 Non-pressure chronic ulcer of left upper arm with necrosis of bone
  • L98.A125 Non-pressure chronic ulcer of left upper arm with muscle involvement without evidence of necrosis
  • L98.A126 Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis
  • L98.A128 Non-pressure chronic ulcer of left upper arm with other specified severity
  • L98.A129 Non-pressure chronic ulcer of left upper arm with unspecified severity
  • L98.A191 Non-pressure chronic ulcer of unspecified upper arm limited to breakdown of skin
  • L98.A192 Non-pressure chronic ulcer of unspecified upper arm with fat layer exposed
  • L98.A193 Non-pressure chronic ulcer of unspecified upper arm with necrosis of muscle
  • L98.A194 Non-pressure chronic ulcer of unspecified upper arm with necrosis of bone
  • L98.A195 Non-pressure chronic ulcer of unspecified upper arm with muscle involvement without evidence of necrosis
  • L98.A196 Non-pressure chronic ulcer of unspecified upper arm with bone involvement without evidence of necrosis
  • L98.A198 Non-pressure chronic ulcer of unspecified upper arm with other specified severity
  • L98.A199 Non-pressure chronic ulcer of unspecified upper arm with unspecified severity
  • L98.A211 Non-pressure chronic ulcer of right forearm limited to breakdown of skin
  • L98.A212 Non-pressure chronic ulcer of right forearm with fat layer exposed
  • L98.A213 Non-pressure chronic ulcer of right forearm with necrosis of muscle
  • L98.A214 Non-pressure chronic ulcer of right forearm with necrosis of bone
  • L98.A215 Non-pressure chronic ulcer of right forearm with muscle involvement without evidence of necrosis
  • L98.A216 Non-pressure chronic ulcer of right forearm with bone involvement without evidence of necrosis
  • L98.A218 Non-pressure chronic ulcer of right forearm with other specified severity
  • L98.A219 Non-pressure chronic ulcer of right forearm with unspecified severity
  • L98.A221 Non-pressure chronic ulcer of left forearm limited to breakdown of skin
  • L98.A222 Non-pressure chronic ulcer of left forearm with fat layer exposed
  • L98.A223 Non-pressure chronic ulcer of left forearm with necrosis of muscle
  • L98.A224 Non-pressure chronic ulcer of left forearm with necrosis of bone
  • L98.A225 Non-pressure chronic ulcer of left forearm with muscle involvement without evidence of necrosis
  • L98.A226 Non-pressure chronic ulcer of left forearm with bone involvement without evidence of necrosis
  • L98.A228 Non-pressure chronic ulcer of left forearm with other specified severity
  • L98.A229 Non-pressure chronic ulcer of left forearm with unspecified severity
  • L98.A291 Non-pressure chronic ulcer of unspecified forearm limited to breakdown of skin
  • L98.A292 Non-pressure chronic ulcer of unspecified forearm with fat layer exposed
  • L98.A293 Non-pressure chronic ulcer of unspecified forearm with necrosis of muscle
  • L98.A294 Non-pressure chronic ulcer of unspecified forearm with necrosis of bone
  • L98.A295 Non-pressure chronic ulcer of unspecified forearm with muscle involvement without evidence of necrosis
  • L98.A296 Non-pressure chronic ulcer of unspecified forearm with bone involvement without evidence of necrosis
  • L98.A298 Non-pressure chronic ulcer of unspecified forearm with other specified severity
  • L98.A299 Non-pressure chronic ulcer of unspecified forearm with unspecified severity
  • L98.A311 Non-pressure chronic ulcer of right hand limited to breakdown of skin
  • L98.A312 Non-pressure chronic ulcer of right hand with fat layer exposed
  • L98.A313 Non-pressure chronic ulcer of right hand with necrosis of muscle
  • L98.A314 Non-pressure chronic ulcer of right hand with necrosis of bone
  • L98.A315 Non-pressure chronic ulcer of right hand with muscle involvement without evidence of necrosis
  • L98.A316 Non-pressure chronic ulcer of right hand with bone involvement without evidence of necrosis
  • L98.A318 Non-pressure chronic ulcer of right hand with other specified severity
  • L98.A319 Non-pressure chronic ulcer of right hand with unspecified severity
  • L98.A321 Non-pressure chronic ulcer of left hand limited to breakdown of skin
  • L98.A322 Non-pressure chronic ulcer of left hand with fat layer exposed
  • L98.A323 Non-pressure chronic ulcer of left hand with necrosis of muscle
  • L98.A324 Non-pressure chronic ulcer of left hand with necrosis of bone
  • L98.A325 Non-pressure chronic ulcer of left hand with muscle involvement without evidence of necrosis
  • L98.A326 Non-pressure chronic ulcer of left hand with bone involvement without evidence of necrosis
  • L98.A328 Non-pressure chronic ulcer of left hand with other specified severity
  • L98.A329 Non-pressure chronic ulcer of left hand with unspecified severity
  • L98.A391 Non-pressure chronic ulcer of unspecified hand limited to breakdown of skin
  • L98.A392 Non-pressure chronic ulcer of unspecified hand with fat layer exposed
  • L98.A393 Non-pressure chronic ulcer of unspecified hand with necrosis of muscle
  • L98.A394 Non-pressure chronic ulcer of unspecified hand with necrosis of bone
  • L98.A395 Non-pressure chronic ulcer of unspecified hand with muscle involvement without evidence of necrosis
  • L98.A396 Non-pressure chronic ulcer of unspecified hand with bone involvement without evidence of necrosis
  • L98.A398 Non-pressure chronic ulcer of unspecified hand with other specified severity
  • L98.A399 Non-pressure chronic ulcer of unspecified hand with unspecified severity
ICD-10-PCS

Procedure Codes

Procedure codes do not drive assignment for this DRG. DRG 594 is a Medical DRG, assigned from the principal diagnosis above.

Frequently Asked Questions

What is MS-DRG 594?

MS-DRG 594 (Skin Ulcers without CC/MCC) is a medical DRG in MDC 09 (Diseases & Disorders of the Skin, Subcutaneous Tissue & Breast). Its FY 2026 relative weight is 0.8668 with a geometric mean length of stay of 3.2 days.

What is the difference between DRG 592, 593, 594?

All 3 share the same base category; the severity of secondary diagnoses separates them: 592 (with MCC), 593 (with CC), 594 (without CC/MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.

How many diagnosis codes group to DRG 594?

479 ICD-10-CM principal diagnosis codes group to this DRG, spanning 3 three-character categories.

What is the relative weight of DRG 594?

The FY 2026 relative weight of this DRG is 0.8668, meaning reimbursement of roughly 0.87 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.

← PreviousDRG 593 – Skin Ulcers with CC
Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.