Other congenital malformations of the digestive system
70 codes in this section
About Section Q38-Q45
Section Q38-Q45 (Q38-Q45) covers other congenital malformations of the digestive system. It sits within the Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders chapter (Q00-QA0). This section contains 70 ICD-10-CM codes, 61 billable diagnoses you can submit on a claim, and 9 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in Q38-Q45
Grouped by 3-character root code. Click any code for full detail.
| Q38.0 | Congenital malformations of lips, not elsewhere classified | Billable |
| Q38.1 | Ankyloglossia | Billable |
| Q38.2 | Macroglossia | Billable |
| Q38.3 | Other congenital malformations of tongue | Billable |
| Q38.4 | Congenital malformations of salivary glands and ducts | Billable |
| Q38.5 | Congenital malformations of palate, not elsewhere classified | Billable |
| Q38.6 | Other congenital malformations of mouth | Billable |
| Q38.7 | Congenital pharyngeal pouch | Billable |
| Q38.8 | Other congenital malformations of pharynx | Billable |
| Q39.0 | Atresia of esophagus without fistula | Billable |
| Q39.1 | Atresia of esophagus with tracheo-esophageal fistula | Billable |
| Q39.2 | Congenital tracheo-esophageal fistula without atresia | Billable |
| Q39.3 | Congenital stenosis and stricture of esophagus | Billable |
| Q39.4 | Esophageal web | Billable |
| Q39.5 | Congenital dilatation of esophagus | Billable |
| Q39.6 | Congenital diverticulum of esophagus | Billable |
| Q39.8 | Other congenital malformations of esophagus | Billable |
| Q39.9 | Congenital malformation of esophagus, unspecified | Billable |
| Q40.0 | Congenital hypertrophic pyloric stenosis | Billable |
| Q40.1 | Congenital hiatus hernia | Billable |
| Q40.2 | Other specified congenital malformations of stomach | Billable |
| Q40.3 | Congenital malformation of stomach, unspecified | Billable |
| Q40.8 | Other specified congenital malformations of upper alimentary tract | Billable |
| Q40.9 | Congenital malformation of upper alimentary tract, unspecified | Billable |
| Q41.0 | Congenital absence, atresia and stenosis of duodenum | Billable |
| Q41.1 | Congenital absence, atresia and stenosis of jejunum | Billable |
| Q41.2 | Congenital absence, atresia and stenosis of ileum | Billable |
| Q41.8 | Congenital absence, atresia and stenosis of other specified parts of small intestine | Billable |
| Q41.9 | Congenital absence, atresia and stenosis of small intestine, part unspecified | Billable |
| Q42.0 | Congenital absence, atresia and stenosis of rectum with fistula | Billable |
| Q42.1 | Congenital absence, atresia and stenosis of rectum without fistula | Billable |
| Q42.2 | Congenital absence, atresia and stenosis of anus with fistula | Billable |
| Q42.3 | Congenital absence, atresia and stenosis of anus without fistula | Billable |
| Q42.8 | Congenital absence, atresia and stenosis of other parts of large intestine | Billable |
| Q42.9 | Congenital absence, atresia and stenosis of large intestine, part unspecified | Billable |
| Q43.0 | Meckel's diverticulum (displaced) (hypertrophic) | Billable |
| Q43.1 | Hirschsprung's disease | Billable |
| Q43.2 | Other congenital functional disorders of colon | Billable |
| Q43.3 | Congenital malformations of intestinal fixation | Billable |
| Q43.4 | Duplication of intestine | Billable |
| Q43.5 | Ectopic anus | Billable |
| Q43.6 | Congenital fistula of rectum and anus | Billable |
| Q43.7 | Persistent cloaca | Billable |
| Q43.8 | Other specified congenital malformations of intestine | Billable |
| Q43.9 | Congenital malformation of intestine, unspecified | Billable |
| Q44.0 | Agenesis, aplasia and hypoplasia of gallbladder | Billable |
| Q44.1 | Other congenital malformations of gallbladder | Billable |
| Q44.2 | Atresia of bile ducts | Billable |
| Q44.3 | Congenital stenosis and stricture of bile ducts | Billable |
| Q44.4 | Choledochal cyst | Billable |
| Q44.5 | Other congenital malformations of bile ducts | Billable |
| Q44.6 | Cystic disease of liver | Billable |
| Q44.7 | Other congenital malformations of liver | Header |
| Q44.70 | Other congenital malformation of liver, unspecified | Billable |
| Q44.71 | Alagille syndrome | Billable |
| Q44.79 | Other congenital malformations of liver | Billable |
| Q45.0 | Agenesis, aplasia and hypoplasia of pancreas | Billable |
| Q45.1 | Annular pancreas | Billable |
| Q45.2 | Congenital pancreatic cyst | Billable |
| Q45.3 | Other congenital malformations of pancreas and pancreatic duct | Billable |
| Q45.8 | Other specified congenital malformations of digestive system | Billable |
| Q45.9 | Congenital malformation of digestive system, unspecified | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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