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  2. ICD-10-CM MS-DRG V43.0
  3. Diagnosis Codes in MS-DRG 458 - Spinal Fusion Except Cervical With Spinal Curvature, Malignancy, Infection Or Extensive Fusions Without CC/MCC

Diagnosis Codes in MS-DRG 458 - Spinal Fusion Except Cervical With Spinal Curvature, Malignancy, Infection Or Extensive Fusions Without CC/MCC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the diagnosis codes included in MS-DRG V43.0: Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC from October 1, 2025, through September 30, 2026.

MS-DRG: 458

MS-DRG Title: Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC

MCD: 08

Relative Weight: 4.1726 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.

Geometric LOS: 2.40 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.

Arithmetic LOS: 2.80 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.

  1. A02.2 - Localized salmonella infections
  2. A18.0 - Tuberculosis of bones and joints
  3. A54.4 - Gonococcal infection of musculoskeletal system
  4. C41 - Malignant neoplasm of bone and articular cartilage of
  5. C79.5 - Secondary malignant neoplasm of bone and bone marrow
  6. C7B.0 - Secondary carcinoid tumors
  7. D16 - Benign neoplasm of bone and articular cartilage
  8. D48 - Neoplasm of uncertain behavior of other and unspecifie
  9. D49 - Neoplasms of unspecified behavior
  10. M40.0 - Postural kyphosis
  11. M40.1 - Other secondary kyphosis
  12. M40.20 - Unspecified kyphosis
  13. M40.29 - Other kyphosis
  14. M40.3 - Flatback syndrome
  15. M40.4 - Postural lordosis
  16. M40.5 - Lordosis, unspecified
  17. M41 - Scoliosis
  18. M41.0 - Infantile idiopathic scoliosis
  19. M41.11 - Juvenile idiopathic scoliosis
  20. M41.12 - Adolescent idiopathic scoliosis
  21. M41.2 - Other idiopathic scoliosis
  22. M41.3 - Thoracogenic scoliosis
  23. M41.4 - Neuromuscular scoliosis
  24. M41.5 - Other secondary scoliosis
  25. M41.8 - Other forms of scoliosis
  26. M42.0 - Juvenile osteochondrosis of spine
  27. M43 - Other deforming dorsopathies
  28. M43.8X - Other specified deforming dorsopathies
  29. M46.2 - Osteomyelitis of vertebra
  30. M46.3 - Infection of intervertebral disc (pyogenic)
  31. M46.5 - Other infective spondylopathies
  32. M84.58 - Pathological fracture in neoplastic disease, other
  33. M84.68 - Pathological fracture in other disease, other site
  34. M86 - Osteomyelitis
  35. M86.0 - Acute hematogenous osteomyelitis
  36. M86.1 - Other acute osteomyelitis
  37. M86.2 - Subacute osteomyelitis
  38. M86.3 - Chronic multifocal osteomyelitis
  39. M86.4 - Chronic osteomyelitis with draining sinus
  40. M86.5 - Other chronic hematogenous osteomyelitis
  41. M86.6 - Other chronic osteomyelitis
  42. M86.8X - Other osteomyelitis
  43. M96 - Intraoperative and postprocedural complications and di
  44. Q67 - Congenital musculoskeletal deformities of head, face,
  45. Q76 - Congenital malformations of spine and bony thorax
  46. Q76.42 - Congenital lordosis
  47. Q78 - Other osteochondrodysplasias
  48. T84.63 - Infection and inflammatory reaction due to internal
  49. T84.69 - Infection and inflammatory reaction due to internal

  • A02.2 - Localized salmonella infections

    • A02.24 - Salmonella osteomyelitis

  • A18.0 - Tuberculosis of bones and joints

    • A18.01 - Tuberculosis of spine

  • A54.4 - Gonococcal infection of musculoskeletal system

    • A54.40 - Gonococcal infection of musculoskeletal system, unspecified

    • A54.41 - Gonococcal spondylopathy

    • A54.43 - Gonococcal osteomyelitis

    • A54.49 - Gonococcal infection of other musculoskeletal tissue

  • C41 - Malignant neoplasm of bone and articular cartilage of other and unspecified sites

    • C41.2 - Malignant neoplasm of vertebral column

  • C79.5 - Secondary malignant neoplasm of bone and bone marrow

    • C79.51 - Secondary malignant neoplasm of bone

    • C79.52 - Secondary malignant neoplasm of bone marrow

  • C7B.0 - Secondary carcinoid tumors

    • C7B.03 - Secondary carcinoid tumors of bone

  • D16 - Benign neoplasm of bone and articular cartilage

    • D16.6 - Benign neoplasm of vertebral column

  • D48 - Neoplasm of uncertain behavior of other and unspecified sites

    • D48.0 - Neoplasm of uncertain behavior of bone and articular cartilage

  • D49 - Neoplasms of unspecified behavior

    • D49.2 - Neoplasm of unspecified behavior of bone, soft tissue, and skin

  • M40.0 - Postural kyphosis

    • M40.00 - Postural kyphosis, site unspecified

    • M40.04 - Postural kyphosis, thoracic region

    • M40.05 - Postural kyphosis, thoracolumbar region

  • M40.1 - Other secondary kyphosis

    • M40.10 - Other secondary kyphosis, site unspecified

    • M40.14 - Other secondary kyphosis, thoracic region

    • M40.15 - Other secondary kyphosis, thoracolumbar region

  • M40.20 - Unspecified kyphosis

    • M40.204 - Unspecified kyphosis, thoracic region

    • M40.205 - Unspecified kyphosis, thoracolumbar region

    • M40.209 - Unspecified kyphosis, site unspecified

  • M40.29 - Other kyphosis

    • M40.294 - Other kyphosis, thoracic region

    • M40.295 - Other kyphosis, thoracolumbar region

    • M40.299 - Other kyphosis, site unspecified

  • M40.3 - Flatback syndrome

    • M40.30 - Flatback syndrome, site unspecified

    • M40.35 - Flatback syndrome, thoracolumbar region

    • M40.36 - Flatback syndrome, lumbar region

    • M40.37 - Flatback syndrome, lumbosacral region

  • M40.4 - Postural lordosis

    • M40.40 - Postural lordosis, site unspecified

    • M40.45 - Postural lordosis, thoracolumbar region

    • M40.46 - Postural lordosis, lumbar region

    • M40.47 - Postural lordosis, lumbosacral region

  • M40.5 - Lordosis, unspecified

    • M40.50 - Lordosis, unspecified, site unspecified

    • M40.55 - Lordosis, unspecified, thoracolumbar region

    • M40.56 - Lordosis, unspecified, lumbar region

    • M40.57 - Lordosis, unspecified, lumbosacral region

  • M41 - Scoliosis

    • M41.9 - Scoliosis, unspecified

  • M41.0 - Infantile idiopathic scoliosis

    • M41.00 - Infantile idiopathic scoliosis, site unspecified

    • M41.04 - Infantile idiopathic scoliosis, thoracic region

    • M41.05 - Infantile idiopathic scoliosis, thoracolumbar region

    • M41.06 - Infantile idiopathic scoliosis, lumbar region

    • M41.07 - Infantile idiopathic scoliosis, lumbosacral region

    • M41.08 - Infantile idiopathic scoliosis, sacral and sacrococcygeal region

  • M41.11 - Juvenile idiopathic scoliosis

    • M41.114 - Juvenile idiopathic scoliosis, thoracic region

    • M41.115 - Juvenile idiopathic scoliosis, thoracolumbar region

    • M41.116 - Juvenile idiopathic scoliosis, lumbar region

    • M41.117 - Juvenile idiopathic scoliosis, lumbosacral region

    • M41.119 - Juvenile idiopathic scoliosis, site unspecified

  • M41.12 - Adolescent idiopathic scoliosis

    • M41.124 - Adolescent idiopathic scoliosis, thoracic region

    • M41.125 - Adolescent idiopathic scoliosis, thoracolumbar region

    • M41.126 - Adolescent idiopathic scoliosis, lumbar region

    • M41.127 - Adolescent idiopathic scoliosis, lumbosacral region

    • M41.129 - Adolescent idiopathic scoliosis, site unspecified

  • M41.2 - Other idiopathic scoliosis

    • M41.20 - Other idiopathic scoliosis, site unspecified

    • M41.24 - Other idiopathic scoliosis, thoracic region

    • M41.25 - Other idiopathic scoliosis, thoracolumbar region

    • M41.26 - Other idiopathic scoliosis, lumbar region

    • M41.27 - Other idiopathic scoliosis, lumbosacral region

  • M41.3 - Thoracogenic scoliosis

    • M41.30 - Thoracogenic scoliosis, site unspecified

    • M41.34 - Thoracogenic scoliosis, thoracic region

    • M41.35 - Thoracogenic scoliosis, thoracolumbar region

  • M41.4 - Neuromuscular scoliosis

    • M41.40 - Neuromuscular scoliosis, site unspecified

    • M41.44 - Neuromuscular scoliosis, thoracic region

    • M41.45 - Neuromuscular scoliosis, thoracolumbar region

    • M41.46 - Neuromuscular scoliosis, lumbar region

    • M41.47 - Neuromuscular scoliosis, lumbosacral region

  • M41.5 - Other secondary scoliosis

    • M41.50 - Other secondary scoliosis, site unspecified

    • M41.54 - Other secondary scoliosis, thoracic region

    • M41.55 - Other secondary scoliosis, thoracolumbar region

    • M41.56 - Other secondary scoliosis, lumbar region

    • M41.57 - Other secondary scoliosis, lumbosacral region

  • M41.8 - Other forms of scoliosis

    • M41.80 - Other forms of scoliosis, site unspecified

    • M41.84 - Other forms of scoliosis, thoracic region

    • M41.85 - Other forms of scoliosis, thoracolumbar region

    • M41.86 - Other forms of scoliosis, lumbar region

    • M41.87 - Other forms of scoliosis, lumbosacral region

  • M42.0 - Juvenile osteochondrosis of spine

    • M42.00 - Juvenile osteochondrosis of spine, site unspecified

    • M42.04 - Juvenile osteochondrosis of spine, thoracic region

    • M42.05 - Juvenile osteochondrosis of spine, thoracolumbar region

    • M42.06 - Juvenile osteochondrosis of spine, lumbar region

    • M42.07 - Juvenile osteochondrosis of spine, lumbosacral region

    • M42.08 - Juvenile osteochondrosis of spine, sacral and sacrococcygeal region

    • M42.09 - Juvenile osteochondrosis of spine, multiple sites in spine

  • M43 - Other deforming dorsopathies

    • M43.9 - Deforming dorsopathy, unspecified

  • M43.8X - Other specified deforming dorsopathies

    • M43.8X4 - Other specified deforming dorsopathies, thoracic region

    • M43.8X5 - Other specified deforming dorsopathies, thoracolumbar region

    • M43.8X6 - Other specified deforming dorsopathies, lumbar region

    • M43.8X7 - Other specified deforming dorsopathies, lumbosacral region

    • M43.8X8 - Other specified deforming dorsopathies, sacral and sacrococcygeal region

    • M43.8X9 - Other specified deforming dorsopathies, site unspecified

  • M46.2 - Osteomyelitis of vertebra

    • M46.20 - Osteomyelitis of vertebra, site unspecified

    • M46.21 - Osteomyelitis of vertebra, occipito-atlanto-axial region

    • M46.22 - Osteomyelitis of vertebra, cervical region

    • M46.23 - Osteomyelitis of vertebra, cervicothoracic region

    • M46.24 - Osteomyelitis of vertebra, thoracic region

    • M46.25 - Osteomyelitis of vertebra, thoracolumbar region

    • M46.26 - Osteomyelitis of vertebra, lumbar region

    • M46.27 - Osteomyelitis of vertebra, lumbosacral region

    • M46.28 - Osteomyelitis of vertebra, sacral and sacrococcygeal region

  • M46.3 - Infection of intervertebral disc (pyogenic)

    • M46.30 - Infection of intervertebral disc (pyogenic), site unspecified

    • M46.31 - Infection of intervertebral disc (pyogenic), occipito-atlanto-axial region

    • M46.32 - Infection of intervertebral disc (pyogenic), cervical region

    • M46.33 - Infection of intervertebral disc (pyogenic), cervicothoracic region

    • M46.34 - Infection of intervertebral disc (pyogenic), thoracic region

    • M46.35 - Infection of intervertebral disc (pyogenic), thoracolumbar region

    • M46.36 - Infection of intervertebral disc (pyogenic), lumbar region

    • M46.37 - Infection of intervertebral disc (pyogenic), lumbosacral region

    • M46.38 - Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal region

    • M46.39 - Infection of intervertebral disc (pyogenic), multiple sites in spine

  • M46.5 - Other infective spondylopathies

    • M46.50 - Other infective spondylopathies, site unspecified

    • M46.51 - Other infective spondylopathies, occipito-atlanto-axial region

    • M46.52 - Other infective spondylopathies, cervical region

    • M46.53 - Other infective spondylopathies, cervicothoracic region

    • M46.54 - Other infective spondylopathies, thoracic region

    • M46.55 - Other infective spondylopathies, thoracolumbar region

    • M46.56 - Other infective spondylopathies, lumbar region

    • M46.57 - Other infective spondylopathies, lumbosacral region

    • M46.58 - Other infective spondylopathies, sacral and sacrococcygeal region

    • M46.59 - Other infective spondylopathies, multiple sites in spine

  • M84.58 - Pathological fracture in neoplastic disease, other specified site

    • M84.58XA - Pathological fracture in neoplastic disease, other specified site, initial encounter for fracture

  • M84.68 - Pathological fracture in other disease, other site

    • M84.68XA - Pathological fracture in other disease, other site, initial encounter for fracture

  • M86 - Osteomyelitis

    • M86.9 - Osteomyelitis, unspecified

  • M86.0 - Acute hematogenous osteomyelitis

    • M86.00 - Acute hematogenous osteomyelitis, unspecified site

    • M86.08 - Acute hematogenous osteomyelitis, other sites

    • M86.09 - Acute hematogenous osteomyelitis, multiple sites

  • M86.1 - Other acute osteomyelitis

    • M86.10 - Other acute osteomyelitis, unspecified site

    • M86.18 - Other acute osteomyelitis, other site

    • M86.19 - Other acute osteomyelitis, multiple sites

  • M86.2 - Subacute osteomyelitis

    • M86.20 - Subacute osteomyelitis, unspecified site

    • M86.28 - Subacute osteomyelitis, other site

    • M86.29 - Subacute osteomyelitis, multiple sites

  • M86.3 - Chronic multifocal osteomyelitis

    • M86.30 - Chronic multifocal osteomyelitis, unspecified site

    • M86.38 - Chronic multifocal osteomyelitis, other site

    • M86.39 - Chronic multifocal osteomyelitis, multiple sites

  • M86.4 - Chronic osteomyelitis with draining sinus

    • M86.40 - Chronic osteomyelitis with draining sinus, unspecified site

    • M86.48 - Chronic osteomyelitis with draining sinus, other site

    • M86.49 - Chronic osteomyelitis with draining sinus, multiple sites

  • M86.5 - Other chronic hematogenous osteomyelitis

    • M86.50 - Other chronic hematogenous osteomyelitis, unspecified site

    • M86.58 - Other chronic hematogenous osteomyelitis, other site

    • M86.59 - Other chronic hematogenous osteomyelitis, multiple sites

  • M86.6 - Other chronic osteomyelitis

    • M86.60 - Other chronic osteomyelitis, unspecified site

    • M86.68 - Other chronic osteomyelitis, other site

    • M86.69 - Other chronic osteomyelitis, multiple sites

  • M86.8X - Other osteomyelitis

    • M86.8X0 - Other osteomyelitis, multiple sites

    • M86.8X8 - Other osteomyelitis, other site

    • M86.8X9 - Other osteomyelitis, unspecified sites

  • M96 - Intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified

    • M96.2 - Postradiation kyphosis

    • M96.3 - Postlaminectomy kyphosis

    • M96.4 - Postsurgical lordosis

    • M96.5 - Postradiation scoliosis

  • Q67 - Congenital musculoskeletal deformities of head, face, spine and chest

    • Q67.5 - Congenital deformity of spine

  • Q76 - Congenital malformations of spine and bony thorax

    • Q76.3 - Congenital scoliosis due to congenital bony malformation

  • Q76.42 - Congenital lordosis

    • Q76.425 - Congenital lordosis, thoracolumbar region

    • Q76.426 - Congenital lordosis, lumbar region

    • Q76.427 - Congenital lordosis, lumbosacral region

    • Q76.428 - Congenital lordosis, sacral and sacrococcygeal region

    • Q76.429 - Congenital lordosis, unspecified region

  • Q78 - Other osteochondrodysplasias

    • Q78.0 - Osteogenesis imperfecta

  • T84.63 - Infection and inflammatory reaction due to internal fixation device of spine

    • T84.63XA - Infection and inflammatory reaction due to internal fixation device of spine, initial encounter

  • T84.69 - Infection and inflammatory reaction due to internal fixation device of other site

    • T84.69XA - Infection and inflammatory reaction due to internal fixation device of other site, initial encounter