Q77.6 vs Q87.1
Q77.6 (Chondroectodermal dysplasia) compared with Q87.1 (Congenital malformation syndromes predominantly associated with short stature), 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. Q87.1 carries an Excludes1 note covering Q77.6: “Ellis-van Creveld syndrome (Q77.6)”
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
| Q77.6Chondroectodermal dysplasia | Q87.1Congenital malformation syndromes predominantly associated with short stature | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Chondroectodermal dysplasia is a billable ICD-10-CM diagnosis code (Q77.6). | Congenital malformation syndromes predominantly associated with short stature is a non-billable ICD-10-CM category code (Q87.1). |
| Includes | Ellis-van Creveld syndrome | — |
| Use additional code | — | code(s) to identify all associated manifestations |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources