Diseases of the musculoskeletal system and connective tissue
Chapter 13 of the ICD-10-CM Tabular List covers M00-M99 and contains 8,707 codes across 79 categories, of which 6,687 are billable for FY2027.
Excludes2 — not included here
The conditions below are not part of this code, but a patient may have both at the same time. When documentation supports it, this code and the excluded code may both be reported.
- 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)
Note
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
M00-M02 — Infectious arthropathies
M04 — Autoinflammatory syndromes (M04)
M05-M14 — Inflammatory polyarthropathies
M15-M19 — Osteoarthritis
M20-M25 — Other joint disorders
M26-M27 — Dentofacial anomalies [including malocclusion] and other disorders of jaw
M30-M36 — Systemic connective tissue disorders
- M30Polyarteritis nodosa and related conditions
- M31Other necrotizing vasculopathies
- M32Systemic lupus erythematosus (SLE)
- M33Dermatopolymyositis
- M34Systemic sclerosis [scleroderma]
- M35Other systemic involvement of connective tissue
- M36Systemic disorders of connective tissue in diseases classified elsewhere