ICD-10-CM 2027
ICD-10 code for pulmonary artery coarctation
From the official ICD-10-CM alphabetic index entry “Coarctation › pulmonary artery”. Page updated September 29, 2026.
About coding pulmonary artery coarctation
The ICD-10-CM code for pulmonary artery coarctation is Q25.71 (Coarctation of pulmonary artery).
Within Q25.7 (other congenital malformations of pulmonary artery), Q25.71 is specifically for coarctation of pulmonary artery. Related codes cover congenital pulmonary arteriovenous malformation (Q25.72) and other congenital malformations of pulmonary artery (Q25.79).
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 306 (Cardiac Congenital and Valvular Disorders with MCC, relative weight 1.546) and DRG 307 (Cardiac Congenital and Valvular Disorders without MCC, relative weight 0.9148), in MDC 05 (Diseases and Disorders of the Circulatory System), 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 pulmonary artery coarctation ICD-10 codes
What is the ICD-10 code for pulmonary artery coarctation?
- Q25.71 — Coarctation of pulmonary artery.
Is Q25.71 billable?
- Yes. Q25.71 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q25.71 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q25.71 as a principal diagnosis.
Is Q25.71 a CC or MCC?
- Q25.71 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.