P91.61 — Mild hypoxic ischemic encephalopathy [HIE]
P91.61 is a billable, specific ICD-10-CM code for mild hypoxic ischemic encephalopathy [hie]. It is valid for submission on a claim.
Risk adjustment
P91.61 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
P91.61 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 P91.61 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 P91.61.
- Encephalopathy›hypoxic ischemic›mild
- Newborn›affected by›hypoxic ischemic encephalopathy [HIE]›mild
Related codes at this level
Codes that share P91.6. If P91.61 is not quite right, the correct code is usually one of these.
Questions about P91.61
- Is P91.61 a billable ICD-10-CM code?
- Yes. P91.61 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does P91.61 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).