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ICD-10-CM 2027

ICD-10 code for gallbladder hypoplasia

Q44.0

Agenesis, aplasia and hypoplasia of gallbladder

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Hypoplasia, hypoplastic › gallbladder”. Page updated September 29, 2026.

About coding gallbladder hypoplasia

The ICD-10-CM code for gallbladder hypoplasia is Q44.0 (Agenesis, aplasia and hypoplasia of gallbladder).

Within Q44 (congenital malformations of gallbladder, bile ducts and liver), Q44.0 is specifically for agenesis, aplasia and hypoplasia of gallbladder. Related codes cover other congenital malformations of gallbladder (Q44.1), atresia of bile ducts (Q44.2), congenital stenosis and stricture of bile ducts (Q44.3), Choledochal cyst (Q44.4), other congenital malformations of bile ducts (Q44.5), cystic disease of liver (Q44.6) and other congenital malformations of liver (Q44.7).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC, relative weight 1.8219), DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC, relative weight 0.9602) and DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC, relative weight 0.6885), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

Common questions about gallbladder hypoplasia ICD-10 codes

What is the ICD-10 code for gallbladder hypoplasia?

Q44.0 — Agenesis, aplasia and hypoplasia of gallbladder.

Is Q44.0 billable?

Yes. Q44.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q44.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q44.0 as a principal diagnosis.

Is Q44.0 a CC or MCC?

Q44.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.