ICD-10-CM 2027 diagnosis code

P19Metabolic acidemia in newborn

Not billable — use a more specific code

P19 is a header code, so it can't be reported by itself. Choose one of the 4 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 P19

P19 is the ICD-10-CM diagnosis code for metabolic acidemia in newborn. It belongs to block P19-P29 (respiratory and cardiovascular disorders specific to 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 4 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: P19.0 (first noted before onset of labor), P19.1 (first noted during labor), P19.2 (birth) and P19.9 (unspecified).

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 P19

Coding notes

IncludesFurther defines the content of the category

metabolic acidemia in newborn

Notes that apply from higher levels

Instructions written at a parent level also apply to P19.

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

Codes whose notes reference P19

P74.0Excludes1

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 P19

Is P19 billable?: No. P19 is a header code. Report one of its more specific subcodes instead.