P20.1 ICD-10-CA code: Intrapartum fetal acidaemia first noted during labour and delivery
P20.1 is the ICD-10-CA code for “Intrapartum fetal acidaemia first noted during labour and delivery” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
P20.1Intrapartum fetal acidaemia first noted during labour and delivery
Short description: Intrapart fetal acidemia dur labour &del
ICD-10-CA · Canada · Also written P201
Index terms
Entries in CIHI’s alphabetical index that lead to P20.1. Searching the index by the condition the note names is how coders reach this code.
- Acidemia, fetal, with documented arterial blood value of pH less than or equal to 7.00 and/or base deficit greater than or equal to 12, first noted during labor and delivery
- Acidosis (lactic) (respiratory), fetal, with documented arterial blood value of pH less than or equal to 7.00 and/or base deficit greater than or equal to 12, first noted during labor and delivery
- Acidosis (lactic) (respiratory), intrauterine, with documented arterial blood value of pH less than or equal to 7.00 and/or base deficit greater than or equal to 12, first noted during labor and delivery
- Abnormal, abnormality, abnormalities, acid base balance (mixed), fetus, with documented arterial blood value of pH less than or equal to 7.00 and/or base deficit greater than or equal to 12, first noted during labor and delivery
- Condition, conditions (arising in the perinatal period), acidosis (lactic) (respiratory), fetal, with documented arterial blood value of pH less than or equal to 7.00 and/or base deficit greater than or equal to 12, first noted during labor and delivery
Notes for P20.1
As CIHI prints them, with any note P20.1 takes from the headings above it.
Includes
- Scalp arterial blood pH ≤7.00 and/or base deficit ≥12 mmol/L
- Fetal acidosisintrauterine acidosisFrom P20 Fetal acidaemia
- Conditions that have their origin in the perinatal period even though death or morbidity occurs laterFrom Chapter 16: Certain conditions originating in the perinatal period (P00-P96)
Use additional code
Add a code for this detail when the note documents it.
- Use additional code to identify any associated manifestations such as hypoxic ischaemic encephalopathy of newborn (P91.6)From P20 Fetal acidaemia
Excludes
Conditions classified elsewhere.
- Diagnosis of asphyxia without substantiated blood values (P96.9)intracranial haemorrhage due to anoxia or hypoxia (P52.-)From P20 Fetal acidaemia
- Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)tetanus neonatorum (A33)whooping cough (A37.-)From Chapter 16: Certain conditions originating in the perinatal period (P00-P96)
Note
- Use this category only with documented arterial blood value of pH ≤7.00 and/or base deficit ≥12mmol/LFrom P20 Fetal acidaemia
Where P20.1 sits
- 1ChapterChapter 16: Certain conditions originating in the perinatal period (P00-P96)
- 2Block P20-P29Respiratory and cardiovascular disorders specific to the perinatal period
- 3Category P20Fetal acidaemia
- 4Valid code P20.1Intrapartum fetal acidaemia first noted during labour and delivery
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code P20.1 mean?
P20.1 is the ICD-10-CA code for “Intrapartum fetal acidaemia first noted during labour and delivery” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is P20.1 in ICD-10-CA?
P20.1 sits under P20 Fetal acidaemia, within P20-P29 Respiratory and cardiovascular disorders specific to the perinatal period, within Chapter 16: Certain conditions originating in the perinatal period (P00-P96).
What coding notes apply to P20.1?
ICD-10-CA lists Includes, Note, Use additional code, Excludes notes for P20.1, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.