Other congenital malformations of the digestive system (Q38-Q45) ICD-10-CM
The Q38–Q45 section covers other congenital malformations of the digestive system with 70 ICD-10-CM diagnosis codes, of which 61 are billable in fiscal year 2026. The section is organized into the 8 code ranges listed below.
Code Ranges in This Section 8 ranges · 70 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the Q38–Q45 Code Range
ICD-10 codes Q38 to Q45 cover various congenital malformations of the digestive system, including defects involving the tongue, mouth, pharynx, esophagus, stomach, intestines, gallbladder, bile ducts, liver, and pancreas. These codes are used to classify congenital anomalies such as tongue abnormalities, esophageal atresia, congenital hypertrophic pyloric stenosis, intestinal atresia and stenosis, and biliary atresia.
This code range provides detailed categories for birth defects affecting the upper and lower digestive tract. For example, Q38 codes address malformations like ankyloglossia (tongue tie) and congenital lip pits, while Q39 codes specify atresia and fistulas of the esophagus. Q40 includes pyloric stenosis and hiatus hernia. Moving lower, Q41 and Q42 are used for congenital absence, atresia, or stenosis of the small and large intestines and anus, with synonyms such as “congenital duodenal obstruction” or “anal atresia.” Hirschsprung's disease and Meckel’s diverticulum fall under Q43. Congenital issues of the liver, gallbladder, and bile ducts, including biliary atresia and choledochal cysts, are coded in Q44. The Q45 codes cover pancreatic malformations like annular pancreas and pancreatic cysts. These codes help medical coders precisely document complex congenital digestive abnormalities, facilitating proper diagnosis and treatment planning.
Questions About This Page
How many codes are in the Q38-Q45 range?
The Q38-Q45 range contains 70 ICD-10-CM diagnosis codes in FY 2026. 61 of them are billable, and the rest are category headers that organize the section.
What conditions does Q38-Q45 cover?
The range covers other congenital malformations of the digestive system. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
