Is Q27.3 a billable ICD-10-CM code?

No. Q27.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Q27.3 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the circulatory system (Q20-Q28).

What cannot be coded together with Q27.3?

Q27.3 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.

Q27.3

Q27.3 — Arteriovenous malformation (peripheral)

Non-billable headerICD-10-CM

Q27.3 is a non-billable header ICD-10-CM code for arteriovenous malformation (peripheral). It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

acquired arteriovenous aneurysm (I77.0)

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

arteriovenous malformation of cerebral vessels (Q28.2)
arteriovenous malformation of precerebral vessels (Q28.0)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Arteriovenous aneurysm

Excludes2 inherited from the categories above Q27.3

Also inherited, and the opposite of Excludes1: these conditions are not part of Q27.3, but a patient can have both, so you may code both.

Written on Q27 — Other congenital malformations of peripheral vascular system

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.-)

Other codes that can never be billed with Q27.3

These codes carry an Excludes1 note pointing at Q27.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q27.3 alone.

I77.0Arteriovenous fistula, acquired
Q27.8Other specified congenital malformations of peripheral vascular system

Risk adjustment

Q27.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

Q27.3 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead Q27.3

6 child codes. Green means billable.

Related codes at this level

Codes that share Q27. If Q27.3 is not quite right, the correct code is usually one of these.

Questions about Q27.3

Is Q27.3 a billable ICD-10-CM code?: No. Q27.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q27.3 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the circulatory system (Q20-Q28).
What cannot be coded together with Q27.3?: Q27.3 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.