Diagnosis Codes in MS-DRG 121 - ACUTE MAJOR EYE INFECTIONS WITH CC/MCC

The Medicare Severity Diagnosis-Related Group or MS-DRG is a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). This is the group for Diagnosis Codes in MS-DRG 121 - ACUTE MAJOR EYE INFECTIONS WITH Complication Comorbidity/Major Complication or Comorbidity diseases in version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG MS-DRG Title MCD Relative Weight Geometric LOS Arithmetic LOS
121 ACUTE MAJOR EYE INFECTIONS WITH CC/MCC 02 1.2812 Relative Weight
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
1.28 Geometric Length of Stay
The geometric mean length of stay (GMLOS) is used by Medicare to calculate the reimbursement for patients whose medical treatment takes a much longer or shorter time than average.
4.40 Arithmetic Length of Stay
The average length of stay (ALOS) reflects the average number of days a patient spends in a hospital for each admission.

List of ICD-10-CM Codes in Diagnostic Related Group


  • H04.01
    • H04.011 Acute dacryoadenitis, right lacrimal gland
    • H04.012 Acute dacryoadenitis, left lacrimal gland
    • H04.013 Acute dacryoadenitis, bilateral lacrimal glands
    • H04.019 Acute dacryoadenitis, unspecified lacrimal gland
  • H04.32
    • H04.321 Acute dacryocystitis of right lacrimal passage
    • H04.322 Acute dacryocystitis of left lacrimal passage
    • H04.323 Acute dacryocystitis of bilateral lacrimal passages
    • H04.329 Acute dacryocystitis of unspecified lacrimal passage
  • H04.33
    • H04.331 Acute lacrimal canaliculitis of right lacrimal passage
    • H04.332 Acute lacrimal canaliculitis of left lacrimal passage
    • H04.333 Acute lacrimal canaliculitis of bilateral lacrimal passages
    • H04.339 Acute lacrimal canaliculitis of unspecified lacrimal passage
  • H05.01
    • H05.011 Cellulitis of right orbit
    • H05.012 Cellulitis of left orbit
    • H05.013 Cellulitis of bilateral orbits
    • H05.019 Cellulitis of unspecified orbit
  • H05.02
    • H05.021 Osteomyelitis of right orbit
    • H05.022 Osteomyelitis of left orbit
    • H05.023 Osteomyelitis of bilateral orbits
    • H05.029 Osteomyelitis of unspecified orbit
  • H05.03
    • H05.031 Periostitis of right orbit
    • H05.032 Periostitis of left orbit
    • H05.033 Periostitis of bilateral orbits
    • H05.039 Periostitis of unspecified orbit
  • H05.04
    • H05.041 Tenonitis of right orbit
    • H05.042 Tenonitis of left orbit
    • H05.043 Tenonitis of bilateral orbits
    • H05.049 Tenonitis of unspecified orbit
  • H16.00
    • H16.001 Unspecified corneal ulcer, right eye
    • H16.002 Unspecified corneal ulcer, left eye
    • H16.003 Unspecified corneal ulcer, bilateral
    • H16.009 Unspecified corneal ulcer, unspecified eye
  • H16.01
    • H16.011 Central corneal ulcer, right eye
    • H16.012 Central corneal ulcer, left eye
    • H16.013 Central corneal ulcer, bilateral
    • H16.019 Central corneal ulcer, unspecified eye
  • H16.03
    • H16.031 Corneal ulcer with hypopyon, right eye
    • H16.032 Corneal ulcer with hypopyon, left eye
    • H16.033 Corneal ulcer with hypopyon, bilateral
    • H16.039 Corneal ulcer with hypopyon, unspecified eye
  • H16.06
    • H16.061 Mycotic corneal ulcer, right eye
    • H16.062 Mycotic corneal ulcer, left eye
    • H16.063 Mycotic corneal ulcer, bilateral
    • H16.069 Mycotic corneal ulcer, unspecified eye
  • H16.07
    • H16.071 Perforated corneal ulcer, right eye
    • H16.072 Perforated corneal ulcer, left eye
    • H16.073 Perforated corneal ulcer, bilateral
    • H16.079 Perforated corneal ulcer, unspecified eye
  • H16.31
    • H16.311 Corneal abscess, right eye
    • H16.312 Corneal abscess, left eye
    • H16.313 Corneal abscess, bilateral
    • H16.319 Corneal abscess, unspecified eye
  • H21.33
    • H21.331 Parasitic cyst of iris, ciliary body or anterior chamber, right eye
    • H21.332 Parasitic cyst of iris, ciliary body or anterior chamber, left eye
    • H21.333 Parasitic cyst of iris, ciliary body or anterior chamber, bilateral
    • H21.339 Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye
  • H33.12
    • H33.121 Parasitic cyst of retina, right eye
    • H33.122 Parasitic cyst of retina, left eye
    • H33.123 Parasitic cyst of retina, bilateral
    • H33.129 Parasitic cyst of retina, unspecified eye
  • H44.00
    • H44.001 Unspecified purulent endophthalmitis, right eye
    • H44.002 Unspecified purulent endophthalmitis, left eye
    • H44.003 Unspecified purulent endophthalmitis, bilateral
    • H44.009 Unspecified purulent endophthalmitis, unspecified eye
  • H44.01
    • H44.011 Panophthalmitis (acute), right eye
    • H44.012 Panophthalmitis (acute), left eye
    • H44.013 Panophthalmitis (acute), bilateral
    • H44.019 Panophthalmitis (acute), unspecified eye
  • H44.02
    • H44.021 Vitreous abscess (chronic), right eye
    • H44.022 Vitreous abscess (chronic), left eye
    • H44.023 Vitreous abscess (chronic), bilateral
    • H44.029 Vitreous abscess (chronic), unspecified eye
  • H44.12
    • H44.121 Parasitic endophthalmitis, unspecified, right eye
    • H44.122 Parasitic endophthalmitis, unspecified, left eye
    • H44.123 Parasitic endophthalmitis, unspecified, bilateral
    • H44.129 Parasitic endophthalmitis, unspecified, unspecified eye
  • H44.1