Q27 – Other congenital malformations of peripheral vascular system

ICD-10-CM 2027 diagnosis code · Congenital malformations of the circulatory system

Non-billable header

ICD-10-CM code Q27

Code: Q27 (claims format: Q27)
Description: Other congenital malformations of peripheral vascular system
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
Block: Q20-Q28 Congenital malformations of the circulatory system

Billable codes under Q27

Q27 is a header code and cannot be used on claims. Choose the most specific code:

Q27.0 – Congenital absence and hypoplasia of umbilical arteryBillable
Q27.1 – Congenital renal artery stenosisBillable
Q27.2 – Other congenital malformations of renal arteryBillable
Q27.3 – Arteriovenous malformation (peripheral)Header (more codes below)
Q27.4 – Congenital phlebectasiaBillable
Q27.8 – Other specified congenital malformations of peripheral vascular systemBillable
Q27.9 – Congenital malformation of peripheral vascular system, unspecifiedBillable

Notes for Q27

Excludes2 (not included here):

anomalies of cerebral and precerebral vessels (Q28.0-Q28.3)
anomalies of coronary vessels (Q24.5)
anomalies of pulmonary artery (Q25.5-Q25.7)
congenital retinal aneurysm (Q14.1)
hemangioma and lymphangioma (D18.-)

Frequently asked questions

What is ICD-10 code Q27?

Q27 is the ICD-10-CM code for other congenital malformations of peripheral vascular system, in the block Q20-Q28 (Congenital malformations of the circulatory system).

Is Q27 a billable code?

No. Q27 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.