M24.3 vs Q79
M24.3 (Pathological dislocation of joint, not elsewhere classified) compared with Q79 (Congenital malformations of musculoskeletal system, not elsewhere classified), 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. M24.3 carries an Excludes1 note covering Q79: “congenital dislocation or displacement of joint- see congenital malformations and deformations of the musculoskeletal system (Q65-Q79)”
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
| M24.3Pathological dislocation of joint, not elsewhere classified | Q79Congenital malformations of musculoskeletal system, not elsewhere classified | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Pathological dislocation of joint, not elsewhere classified is a non-billable ICD-10-CM category code (M24.3). | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources