Q82 vs Q85.89
Q82 (Other congenital malformations of skin) compared with Q85.89 (Other phakomatoses, 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. Q82 carries an Excludes1 note covering Q85.89: “Sturge-Weber (-Dimitri) syndrome (Q85.89)”
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
| Q82Other congenital malformations of skin | Q85.89Other phakomatoses, not elsewhere classified | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Other congenital malformations of skin is a non-billable ICD-10-CM category code (Q82). | Other phakomatoses, not elsewhere classified is a billable ICD-10-CM diagnosis code (Q85.89). |
| Includes | — | Peutz-Jeghers syndrome Sturge-Weber(-Dimitri) syndrome |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources