Q40.3

Billable

ChapterQ00–Q99

Ranksubcategory

Official Description

Congenital malformation of stomach, unspecified

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99).

General instructions are available for the parent sections:

View CH17 Notes

Clinical Hierarchy

CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)

Q38-Q45Other congenital malformations of the digestive system (Q38-Q45)

Q40Other congenital malformations of upper alimentary tract

Q40.3Congenital malformation of stomach, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Q40.3:

chapterCH17

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to Q40.3. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

5 raw paths

Anomaly, anomalous (congenital) (unspecified type)2 unique routes

pylorus→Q40.3

stomach→Q40.3

Deformity2 unique routes

pylorus (congenital)→Q40.3

stomach (congenital)→Q40.3

Malformation (congenital)1 unique routes

stomach→Q40.3