P91.6Header code — not billable
Hypoxic ischemic encephalopathy [HIE]
- Chapter
- 16. Certain conditions originating in the perinatal period
- Category
- P91
- Effective date
- October 1, 2026
Related codes in category P91
P91Other disturbances of cerebral status of newbornP91.0Neonatal cerebral ischemiaYesP91.1Acquired periventricular cysts of newbornYesP91.2Neonatal cerebral leukomalaciaYesP91.3Neonatal cerebral irritabilityYesP91.4Neonatal cerebral depressionYesP91.5Neonatal comaYesP91.60Hypoxic ischemic encephalopathy [HIE], unspecifiedYesP91.61Mild hypoxic ischemic encephalopathy [HIE]YesP91.62Moderate hypoxic ischemic encephalopathy [HIE]YesP91.63Severe hypoxic ischemic encephalopathy [HIE]YesP91.8Other specified disturbances of cerebral status of newborn
Frequently asked questions
What is ICD-10 code P91.6?
P91.6 is an ICD-10-CM diagnosis code for Hypoxic ischemic encephalopathy [HIE].
Is P91.6 a billable code?
No. P91.6 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is P91.6 in?
P91.6 falls under Chapter 16: Certain conditions originating in the perinatal period.
When did P91.6 become effective?
P91.6 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to P91.6?
P91.6 belongs to category P91, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.