P91.6 — Hypoxic ischemic encephalopathy [HIE]
P91.6 is a non-billable header ICD-10-CM code for hypoxic ischemic encephalopathy [hie]. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with P91.6
These codes carry an Excludes1 note pointing at P91.6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P91.6 alone.
- P84Other problems with newborn
Risk adjustment
P91.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
P91.6 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead P91.6
4 child codes. Green means billable.
Related codes at this level
Codes that share P91. If P91.6 is not quite right, the correct code is usually one of these.
- P91.0Neonatal cerebral ischemia
- P91.1Acquired periventricular cysts of newborn
- P91.2Neonatal cerebral leukomalacia
- P91.3Neonatal cerebral irritability
- P91.4Neonatal cerebral depression
- P91.5Neonatal coma
- P91.8Other specified disturbances of cerebral status of newborn
- P91.9Disturbance of cerebral status of newborn, unspecified
Questions about P91.6
- Is P91.6 a billable ICD-10-CM code?
- No. P91.6 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does P91.6 sit in the tabular list?
- Certain conditions originating in the perinatal period (P00-P96), in the block Other disorders originating in the perinatal period (P90-P96).
- What cannot be coded together with P91.6?
- P91.6 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.