2026 ICD-10-CM Diagnosis Code Q45Other congenital malformations of digestive system

ICD-10-CM Codes›Q00-Q99›Q38-Q45›Q45

ICD-10-CM Q45
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Q45 is a non-billable ICD-10-CM category code for other congenital malformations of digestive system, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Q45.0, Q45.1, Q45.2, and Q45.3.

Code Identity

ICD-10-CM Code
Q45
Billable Status
No — Non-Billable Category
Code Describes
Other congenital malformations of digestive system
Chapter
Q38-Q45
Other congenital malformations of the digestive system

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ38-Q45Other congenital malformations of the digestive system
CategoryQ45Other congenital malformations of digestive system
This CodeQ45Other congenital malformations of digestive system

Specific Coding for Other congenital malformations of digestive systemOverview

Non-specific codes like Q45 require more characters. Use one of these billable codes instead:

  • Use Q45.0 for Agenesis, aplasia and hypoplasia of pancreas

  • Use Q45.1 for Annular pancreas

  • Use Q45.2 for Congenital pancreatic cyst

  • Use Q45.3 for Other congenital malformations of pancreas and pancreatic duct

  • Use Q45.8 for Other specified congenital malformations of digestive system

  • Use Q45.9 for Congenital malformation of digestive system, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 2 Excludes

  • congenital diaphragmatic hernia Q79.0
  • congenital hiatus hernia Q40.1

Patient EducationClinical

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

The full article covers:

  • What are birth defects?
  • What causes birth defects?
  • Who is at risk of having a baby with birth defects?
  • How are birth defects diagnosed?
  • What are the treatments for birth defects?
  • Can birth defects be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Q45Overview

Is Q45 (Other congenital malformations of digestive system) a billable code?

No. This is a category header that groups the codes for other congenital malformations of digestive system, and headers cannot be submitted on claims. Claims for other congenital malformations of digestive system need a more specific code from this category, such as Q45.0, Q45.1, and Q45.2.