M15-M19

Non-Billable
ChapterM00–M99
Rankblock
Official Description

Osteoarthritis (M15-M19)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •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)
  • 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)

Instructional Notes

Excludes2(Not included here)
  • osteoarthritis of spine (M47.-)

Clinical Hierarchy

CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M15-M19Osteoarthritis (M15-M19)
M15Polyosteoarthritis
M16Osteoarthritis of hip
M17Osteoarthritis of knee
M18Osteoarthritis of first carpometacarpal joint
M19Other and unspecified osteoarthritis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M15-M19:

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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