M02.859
Other reactive arthropathies, unspecified hip
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 2 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 18 never code together
M02code
Excludes1
- Behçet's disease (M35.2)M35.2
- direct infections of joint in infectious and parasitic diseases classified elsewhere (M01.-)M01.-
- postmeningococcal arthritis (A39.84)A39.84
- mumps arthritis (B26.85)B26.85
- rubella arthritis (B06.82)B06.82
- syphilis arthritis (late) (A52.77)A52.77
- rheumatic fever (I00)I00
- tabetic arthropathy [Charcôt's] (A52.16)A52.16
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 7
Alongside this code 2 same parent — M02.85
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.