P27.9 ICD-10-CA code: Unspecified chronic respiratory disease originating in the perinatal period
P27.9 is the ICD-10-CA code for “Unspecified chronic respiratory disease originating in the perinatal period” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
P27.9Unspecified chronic respiratory disease originating in the perinatal period
Short description: Unspec chr resp dis perinatal period
ICD-10-CA · Canada · Also written P279
Index terms
Entries in CIHI’s alphabetical index that lead to P27.9. Searching the index by the condition the note names is how coders reach this code.
- Disease, diseased, respiratory (tract), chronic NEC, fetus or newborn
- Condition, conditions (arising in the perinatal period), disease, diseased, respiratory (tract), chronic NEC, fetus or newborn
Notes for P27.9
As CIHI prints them, with any note P27.9 takes from the headings above it.
Includes
- 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)
Excludes
Conditions classified elsewhere.
- 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)
Where P27.9 sits
- 1ChapterChapter 16: Certain conditions originating in the perinatal period (P00-P96)
- 2Block P20-P29Respiratory and cardiovascular disorders specific to the perinatal period
- 3Category P27Chronic respiratory disease originating in the perinatal period
- 4Valid code P27.9Unspecified chronic respiratory disease originating in the perinatal period
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 P27.9 mean?
P27.9 is the ICD-10-CA code for “Unspecified chronic respiratory disease originating in the perinatal period” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is P27.9 in ICD-10-CA?
P27.9 sits under P27 Chronic respiratory disease originating in the perinatal period, 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 P27.9?
ICD-10-CA lists Includes, Excludes notes for P27.9, 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.