I16 vs P29.2
I16 (Hypertensive crisis) compared with P29.2 (Neonatal hypertension), 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. I16 carries an Excludes1 note covering P29.2: “neonatal hypertension (P29.2)”
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
| I16Hypertensive crisis | P29.2Neonatal hypertension | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | P00-P96 — Certain Conditions Originating in the Perinatal Period (P00-P96) |
| Definition | Hypertensive crisis is a non-billable ICD-10-CM category code (I16). | Neonatal hypertension is a billable ICD-10-CM diagnosis code (P29.2). |
| Use additional code | code to identify: exposure to environmental tobacco smoke (Z77.22) history of tobacco dependence (Z87.891) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources