M35.7 vs Q79.6
M35.7 (Hypermobility syndrome) compared with Q79.6 (Ehlers-Danlos syndromes), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. M35.7 carries an Excludes2 note covering Q79.6: “Ehlers-Danlos syndromes (Q79.6-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| M35.7Hypermobility syndrome | Q79.6Ehlers-Danlos syndromes | |
|---|---|---|
| Billing status | Billable | 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 | Hypermobility syndrome is a billable ICD-10-CM diagnosis code (M35.7). | Ehlers-Danlos syndromes is a non-billable ICD-10-CM category code (Q79.6). |
| Includes | autoimmune disease NOS collagen (vascular) disease NOS systemic autoimmune disease systemic collagen (vascular) disease | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources