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Q39.9 ICD-10-CA code: Congenital malformation of oesophagus, unspecified

Q39.9 is the ICD-10-CA code for “Congenital malformation of oesophagus, unspecified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

Q39.9

Congenital malformation of oesophagus, unspecified

Short description: Congenital malformation oesophagus NOS

ICD-10-CA · Canada · Also written Q399

Index terms

Entries in CIHI’s alphabetical index that lead to Q39.9. Searching the index by the condition the note names is how coders reach this code.

  • Deformity, esophagus (congenital)
  • Deformity, oesophagus (congenital)
  • Defect, defective, esophagus, congenital
  • Anomaly, anomalous (congenital) (unspecified type), esophagus
  • Anomaly, anomalous (congenital) (unspecified type), oesophagus

Notes for Q39.9

As CIHI prints them, with any note Q39.9 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

Where Q39.9 sits

  1. 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. 2Block Q38-Q45Other congenital malformations of the digestive system
  3. 3Category Q39Congenital malformations of oesophagus
  4. 4Valid code Q39.9Congenital malformation of oesophagus, unspecified

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 Q39.9 in the CIHI source

Frequently asked questions

What does ICD-10-CA code Q39.9 mean?

Q39.9 is the ICD-10-CA code for “Congenital malformation of oesophagus, unspecified” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is Q39.9 in ICD-10-CA?

Q39.9 sits under Q39 Congenital malformations of oesophagus, within Q38-Q45 Other congenital malformations of the digestive system, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).

What coding notes apply to Q39.9?

ICD-10-CA lists Excludes notes for Q39.9, 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.

Codes beside Q39.9

Q39.0Atresia of oesophagus without fistulaQ39.1Atresia of oesophagus with tracheo-oesophageal fistulaQ39.2Congenital tracheo-oesophageal fistula without atresiaQ39.3Congenital stenosis and stricture of oesophagusQ39.4Congenital oesophageal webQ39.5Congenital dilatation of oesophagusQ39.6Diverticulum of oesophagusQ39.8Other congenital malformations of oesophagus