ICD-10-CM 2027 diagnosis code

P91Other disturbances of cerebral status of newborn

Not billable — use a more specific code

P91 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About P91

P91 is the ICD-10-CM diagnosis code for other disturbances of cerebral status of newborn. It belongs to block P90-P96 (other disorders originating in the perinatal period) and chapter 16 (certain conditions originating in the perinatal period). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: P91.0 (ischemia), P91.1 (newborn), P91.2 (leukomalacia), P91.3 (irritability), P91.4 (depression), P91.5 (coma), P91.6 ([HIE]), P91.8 (newborn) and 1 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under P91

Notes that apply from higher levels

Instructions written at a parent level also apply to P91.

Broader instructions also apply from Chapter 16: Certain conditions originating in the perinatal period.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about P91

Is P91 billable?: No. P91 is a header code. Report one of its more specific subcodes instead.