P91.6

Non-Billable

ChapterP00–P96

Ranksubcategory

Official Description

Hypoxic ischemic encephalopathy [HIE]

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96).

Instructional Notes

Excludes1(Not coded here)

Neonatal cerebral depression (P91.4)
Neonatal cerebral irritability (P91.3)
Neonatal coma (P91.5)

General instructions are available for the parent sections:

View CH16 Notes

Clinical Hierarchy

CH16Certain conditions originating in the perinatal period (P00-P96)

P90-P96Other disorders originating in the perinatal period (P90-P96)

P91Other disturbances of cerebral status of newborn

P91.6Hypoxic ischemic encephalopathy [HIE]

P91.60Hypoxic ischemic encephalopathy [HIE], unspecified

P91.61Mild hypoxic ischemic encephalopathy [HIE]

P91.62Moderate hypoxic ischemic encephalopathy [HIE]

P91.63Severe hypoxic ischemic encephalopathy [HIE]

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to P91.6:

chapterCH16

Certain conditions originating in the perinatal period (P00-P96)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to P91.6. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

8 raw paths

Encephalopathy (acute)4 unique routes

hypoxic ischemic→P91.6(4 variants)

mild→P91.6

moderate→P91.6

severe→P91.6

Newborn (infant) (liveborn) (singleton)4 unique routes

affected by(4 variants)

hypoxic ischemic encephalopathy [HIE]→P91.6(4 variants)

mild→P91.6

moderate→P91.6

severe→P91.6

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Hypoxic ischemic encephalopathy [HIE].

Search PCS Codes