M81 vs M89.0
M81 (Osteoporosis without current pathological fracture) compared with M89.0 (Algoneurodystrophy), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. M81 carries an Excludes1 note covering M89.0: “Sudeck's atrophy (M89.0)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| M81Osteoporosis without current pathological fracture | M89.0Algoneurodystrophy | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) |
| Definition | Osteoporosis without current pathological fracture is a non-billable ICD-10-CM category code (M81). | Algoneurodystrophy is a non-billable ICD-10-CM category code (M89.0). |
| Includes | — | Shoulder-hand syndrome Sudeck's atrophy |
| Use additional code | code to identify: major osseous defect, if applicable (M89.7-) personal history of (healed) osteoporosis fracture, if applicable (Z87.310) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources