Is Q27.33 a billable ICD-10-CM code?

Yes. Q27.33 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q27.33 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 Q27.33?

Q27.33 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Q27.33 (Q27.3) and apply to it just the same.

Q27.33

Q27.33 — Arteriovenous malformation of digestive system vessel

Billable / specific codeICD-10-CMPOA exempt

Q27.33 is a billable, specific ICD-10-CM code for arteriovenous malformation of digestive system vessel. It is valid for submission on a claim.

Excludes1 inherited from the categories above Q27.33

These are not written on Q27.33, but they bind it: a note on a category applies to every code beneath it. Billing Q27.33 with anything listed here is a denial.

Written on Q27.3 — Arteriovenous malformation (peripheral)

acquired arteriovenous aneurysm (I77.0)

Excludes2 inherited from the categories above Q27.33

Also inherited, and the opposite of Excludes1: these conditions are not part of Q27.33, but a patient can have both, so you may code both.

Written on Q27.3 — Arteriovenous malformation (peripheral)

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

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.-)

Risk adjustment

Q27.33 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.

Medicare coverage

Q27.33 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52370Billing and Coding: Bevacizumab and biosimilars
A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
A56421Billing and Coding: CT of the Abdomen and Pelvis

How Q27.33 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Q27.33.

Anomaly, anomalous›arteriovenous NEC›gastrointestinal
Malformation›arteriovenous, aneurysmatic›peripheral›digestive system›congenital

Code history

Q27.33 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share Q27.3. If Q27.33 is not quite right, the correct code is usually one of these.

Questions about Q27.33

Is Q27.33 a billable ICD-10-CM code?: Yes. Q27.33 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q27.33 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 Q27.33?: Q27.33 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Q27.33 (Q27.3) and apply to it just the same.