Q26.6 — Portal vein-hepatic artery fistula
Q26.6 is a billable, specific ICD-10-CM code for portal vein-hepatic artery fistula. It is valid for submission on a claim.
Risk adjustment
Q26.6 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
Q26.6 is named in 6 Medicare coverage policies — 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- 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
- A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
How Q26.6 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 Q26.6.
- Fistula›hepatic artery-portal vein, congenital
- Fistula›portal vein-hepatic artery, congenital
- Malformation›great›vein›portal vein-hepatic artery fistula
Related codes at this level
Codes that share Q26. If Q26.6 is not quite right, the correct code is usually one of these.
- Q26.0Congenital stenosis of vena cava
- Q26.1Persistent left superior vena cava
- Q26.2Total anomalous pulmonary venous connection
- Q26.3Partial anomalous pulmonary venous connection
- Q26.4Anomalous pulmonary venous connection, unspecified
- Q26.5Anomalous portal venous connection
- Q26.8Other congenital malformations of great veins
- Q26.9Congenital malformation of great vein, unspecified
Questions about Q26.6
- Is Q26.6 a billable ICD-10-CM code?
- Yes. Q26.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Q26.6 sit in the tabular list?
- Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of the circulatory system (Q20-Q28).