All ICD10 Codes

M46

Non-Billable
ChapterM00–M99
Rankcategory
Official Description

Other inflammatory spondylopathies

Use a more specific code (1 billable, 7 non-billable)
M46.0Spinal enthesopathyhas subcodesM46.1Sacroiliitis, not elsewhere classifiedM46.2Osteomyelitis of vertebrahas subcodesM46.3Infection of intervertebral disc (pyogenic)has subcodesM46.4Discitis, unspecifiedhas subcodesM46.5Other infective spondylopathieshas subcodesM46.8Other specified inflammatory spondylopathieshas subcodesM46.9Unspecified inflammatory spondylopathyhas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M45-M49Spondylopathies (M45-M49)
M46Other inflammatory spondylopathiesNot billable
M46.0Spinal enthesopathySubcodes
M46.1Sacroiliitis, not elsewhere classifiedBillable
M46.2Osteomyelitis of vertebraSubcodes
M46.3Infection of intervertebral disc (pyogenic)Subcodes
M46.4Discitis, unspecifiedSubcodes
M46.5Other infective spondylopathiesSubcodes
M46.8Other specified inflammatory spondylopathiesSubcodes
M46.9Unspecified inflammatory spondylopathySubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M46:

chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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