I60.8 vs Q28
I60.8 (Other nontraumatic subarachnoid hemorrhage) compared with Q28 (Other congenital malformations of circulatory system), 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. Q28 carries an Excludes1 note covering I60.8: “ruptured cerebral arteriovenous malformation (I60.8)”
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
| I60.8Other nontraumatic subarachnoid hemorrhage | Q28Other congenital malformations of circulatory system | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Other nontraumatic subarachnoid hemorrhage is a billable ICD-10-CM diagnosis code (I60.8). | Other congenital malformations of circulatory system is a non-billable ICD-10-CM category code (Q28). |
| Includes | Meningeal hemorrhage Rupture of cerebral arteriovenous malformation | — |
| Use additional code | code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-) code to identify presence of: alcohol abuse and dependence (F10.-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources