Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

MS-DRG 441 — DISORDERS OF LIVER EXCEPT MALIGNANCY, CIRRHOSIS OR ALCOHOLIC HEPATITIS WITH MCC (MDC 07)
MS-DRG 442 — DISORDERS OF LIVER EXCEPT MALIGNANCY, CIRRHOSIS OR ALCOHOLIC HEPATITIS WITH CC (MDC 07)
MS-DRG 443 — DISORDERS OF LIVER EXCEPT MALIGNANCY, CIRRHOSIS OR ALCOHOLIC HEPATITIS WITHOUT CC/MCC (MDC 07)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Other congenital malformations of liver is a billable ICD-10-CM diagnosis code (Q44.79).

Sequencing, inclusion, and exclusion notes published for Q44.79 in the official ICD-10-CM tabular list.

Alternative terms the tabular list files under this code.

Additional codes that may be required to fully describe the encounter.

Official ICD-10-CM classifications closest to Q44.79 in its code family, with their registry titles.

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.