P91.0 — Neonatal cerebral ischemia
P91.0 is a billable, specific ICD-10-CM code for neonatal cerebral ischemia. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- Neonatal cerebral infarction (P91.82-)
Other codes that can never be billed with P91.0
These codes carry an Excludes1 note pointing at P91.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P91.0 alone.
- G45Transient cerebral ischemic attacks and related syndromes
Risk adjustment
P91.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 202 Coma, Brain Compression/Anoxic Damage0.543 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
P91.0 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
How P91.0 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to P91.0.
- Ischemia, ischemic›cerebral›newborn
- Newborn›affected by›cerebral ischemia
Related codes at this level
Codes that share P91. If P91.0 is not quite right, the correct code is usually one of these.
- P91.1Acquired periventricular cysts of newborn
- P91.2Neonatal cerebral leukomalacia
- P91.3Neonatal cerebral irritability
- P91.4Neonatal cerebral depression
- P91.5Neonatal coma
- P91.6Hypoxic ischemic encephalopathy [HIE]
- P91.8Other specified disturbances of cerebral status of newborn
- P91.9Disturbance of cerebral status of newborn, unspecified
Questions about P91.0
- Is P91.0 a billable ICD-10-CM code?
- Yes. P91.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does P91.0 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 P91.0?
- P91.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.