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Q79.1 ICD-10-CA code: Other congenital malformations of diaphragm

Q79.1 is the ICD-10-CA code for “Other congenital malformations of diaphragm” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

Q79.1

Other congenital malformations of diaphragm

Short description: Oth congenital malformations diaphragm

ICD-10-CA · Canada · Also written Q791

Index terms

Entries in CIHI’s alphabetical index that lead to Q79.1. Searching the index by the condition the note names is how coders reach this code.

  • High, diaphragm (congenital)
  • Agenesis, diaphragm (with hernia)
  • Deformity, diaphragm (congenital)
  • Eventration, diaphragm (congenital)
  • Malformation (congenital), diaphragm
  • Defect, defective, diaphragm, congenital
  • Elevated, elevation, diaphragm, congenital
  • Hypertrophy, hypertrophic, hiatus (esophageal)
  • Hypertrophy, hypertrophic, esophageal hiatus (congenital)
  • Enlargement, enlarged, apertures of diaphragm (congenital)
  • Abnormal, abnormality, abnormalities, apertures, congenital, diaphragm
  • Anomaly, anomalous (congenital) (unspecified type), diaphragm (apertures) NEC
  • Absence (organ or part) (complete or partial), diaphragm (with hernia), congenital

Notes for Q79.1

As CIHI prints them, with any note Q79.1 takes from the headings above it.

Includes

  • Absence, Eventration of diaphragmCongenital malformation of diaphragm NOS

Excludes

Conditions classified elsewhere.

Where Q79.1 sits

  1. 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. 2Block Q65-Q79Congenital malformations and deformations of the musculoskeletal system
  3. 3Category Q79Congenital malformations of the musculoskeletal system, not elsewhere classified
  4. 4Valid code Q79.1Other congenital malformations of diaphragm

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.

See Q79.1 in the CIHI source

Frequently asked questions

What does ICD-10-CA code Q79.1 mean?

Q79.1 is the ICD-10-CA code for “Other congenital malformations of diaphragm” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is Q79.1 in ICD-10-CA?

Q79.1 sits under Q79 Congenital malformations of the musculoskeletal system, not elsewhere classified, within Q65-Q79 Congenital malformations and deformations of the musculoskeletal system, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).

What coding notes apply to Q79.1?

ICD-10-CA lists Includes, Excludes notes for Q79.1, 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.

Codes beside Q79.1

Q79.0Congenital diaphragmatic herniaQ79.2ExomphalosQ79.3GastroschisisQ79.4Prune belly syndromeQ79.5Other congenital malformations of abdominal wallQ79.6Ehlers-Danlos syndromeQ79.8Other congenital malformations of musculoskeletal systemQ79.9Congenital malformation of musculoskeletal system, unspecified