Q40.2

Q40.2: Other specified congenital malformations of stomach

Billable / specific codeICD-10-CMPOA exempt

Q40.2 is a billable, specific ICD-10-CM code for other specified congenital malformations of stomach. It is valid for submission on a claim.

Check Q40.2 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Congenital displacement of stomach
Congenital diverticulum of stomach
Congenital hourglass stomach
Congenital duplication of stomach
Megalogastria
Microgastria

Other codes that can never be billed with Q40.2

Their own Excludes1 notes name this code, so the conflict is not listed above.

K31.2Hourglass stricture and stenosis of stomach
K31.4Gastric diverticulum

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q40.2 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
A56421Billing and Coding: CT of the Abdomen and Pelvis
A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

Alphabetic index entries that lead here

Microgastria(congenital)
Agenesis›gastric
Agenesis›stomach
Anomaly, anomalous›cascade stomach
Anomaly, anomalous›hourglass stomach
Displacement, displaced›gastric mucosa(congenital)
Displacement, displaced›stomach, congenital
Duplication, duplex›stomach
Ectopic, ectopia›gastric mucosa
Megalogastria›congenital
Transposition›stomach
Absence›stomach›congenital

Code history

Unchanged in every release from FY2024 to FY2027.