Q44.2 — Atresia of bile ducts

BillableMCC

Is Q44.2 billable?

Yes — Q44.2 is billable for FY2027. Q44.2 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Q44.2 may be submitted for encounters from October 1, 2026 through September 30, 2027.

Q44.2 at a glance

Code	Q44.2
Description	Atresia of bile ducts
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does Q44.2 group to?

Q44.2 sits in MDC 07 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

444Disorders of the Biliary Tract with MCCmedical
445Disorders of the Biliary Tract with CCmedical
446Disorders of the Biliary Tract without CC/MCCmedical

As a secondary diagnosis, Q44.2 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.

How is Q44.2 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to Q44.2. They show the wording a clinician may have documented, which often differs from the Tabular description.

Atresia, atretic › bile duct
Atresia, atretic › common duct
Atresia, atretic › cystic duct
Impervious › bile duct (congenital)

Excludes2 — not included here — inherited from Chapter 17

The conditions below are not part of Q44.2, but a patient may have both at the same time. When documentation supports it, Q44.2 and the excluded code may both be reported.

inborn errors of metabolism (E70-E88)

How long has Q44.2 existed?

Q44.2 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.