ICD-10-CM 2027 diagnosis code
P03.81Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm
P03.81 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.Short description: Newborn affected by abnlt in fetal heart rate or rhythm
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About P03.81
P03.81 is the ICD-10-CM diagnosis code for newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm. It belongs to category P03 (newborn affected by other complications of labor and delivery), block P00-P04 (newborn affected by maternal factors and by complications of pregnancy, labor, and delivery) 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 3 subcodes must be used instead.
Within P03.8 (newborn affected by other specified complications of labor and delivery), P03.81 is specifically for newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm. Related codes cover meconium passage during delivery (P03.82) and newborn affected by other specified complications of labor and delivery (P03.89).
To report this condition, pick the subcode that matches the documentation: P03.810 (before the onset of labor), P03.811 (during labor) and P03.819 (unspecified as to time of onset).
Don't report P03.81 together with the conditions in its Excludes1 note: neonatal cardiac dysrhythmia (P29.1-).
Code first: any current condition in newborn.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).
Specific codes under P03.81
- P03.810Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm before the onset of laborBillable
- P03.811Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm during laborBillable
- P03.819Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onsetBillable
Coding notes
- neonatal cardiac dysrhythmia (P29.1-)
Notes that apply from higher levels
Instructions written at a parent level also apply to P03.81.
› From P03 Newborn affected by other complications of labor and delivery
- encounter for observation of newborn for suspected diseases and conditions ruled out (Z05.-)
- any current condition in newborn
Broader instructions also apply from P00-P04 Newborn affected by maternal factors and by complications of pregnancy, labor, and delivery and 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)
- FY2017 (effective 10/1/2016): Title revised — was “Newborn (suspected to be) affected by abnormality in fetal (intrauterine) heart rate or rhythm”
Common questions about P03.81
Is P03.81 billable?
- No. P03.81 is a header code. Report one of its more specific subcodes instead.