M12.8
Other specific arthropathies, not elsewhere classified
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 12 never code together
M00-M99chapter
Excludes2
- arthropathic psoriasis (L40.5-)L40.5-
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- compartment syndrome (traumatic) (T79.A-)T79.A-
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 3
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 7 same parent — M12
Subordinate codes 10
M12.80 Oth specific arthropathies, NEC, unsp site M12.81 Oth specific arthropathies, NEC, shoulder M12.82 Oth specific arthropathies, not elsewhere classified, elbow M12.83 Oth specific arthropathies, not elsewhere classified, wrist M12.84 Other specific arthropathies, not elsewhere classified, hand M12.85 Other specific arthropathies, not elsewhere classified, hip M12.86 Other specific arthropathies, not elsewhere classified, knee M12.87 Oth specific arthropathies, NEC, ankle and foot M12.88 Oth specific arthropathies, NEC, oth site M12.89 Oth specific arthropathies, NEC, multiple sites
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.