I36 vs Q22.4
I36 (Nonrheumatic tricuspid valve disorders) compared with Q22.4 (Congenital tricuspid stenosis), 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. I36 carries an Excludes1 note covering Q22.4: “tricuspid valve disorders specified as congenital (Q22.4, Q22.8, Q22.9)”
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
| I36Nonrheumatic tricuspid valve disorders | Q22.4Congenital tricuspid stenosis | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Nonrheumatic tricuspid valve disorders is a non-billable ICD-10-CM category code (I36). | Congenital tricuspid stenosis is a billable ICD-10-CM diagnosis code (Q22.4). |
| Includes | — | Congenital tricuspid atresia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources