I10 vs I60
I10 (Essential (primary) hypertension) compared with I60 (Nontraumatic subarachnoid hemorrhage), 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. I10 carries an Excludes2 note covering I60: “essential (primary) hypertension involving vessels of brain (I60-I69)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Sequencing on the claim
1stI60 then I10
I60 carries a Use Additional Code instruction covering I10: “hypertension (I10-I1A)”
Side by side
| I10Essential (primary) hypertension | I60Nontraumatic subarachnoid hemorrhage | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Essential (primary) hypertension is a billable ICD-10-CM diagnosis code (I10). | Nontraumatic subarachnoid hemorrhage is a non-billable ICD-10-CM category code (I60). |
| Includes | high blood pressure hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic) | — |
| Use additional code | code to identify: exposure to environmental tobacco smoke (Z77.22) history of tobacco dependence (Z87.891) | 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