Alphabetic Index FY2027

I77.0

Arteriovenous fistula, acquired

FY2027Chapter 9: Diseases of the circulatory system/I70–I79 Diseases of arteries, arterioles and capillaries

BillableComplete code, valid to report
Care settingsHome Health Primary · MMTA - Cardiac and Circulatory

I77.0 (also written I770) is a billable ICD-10-CM diagnosis code for arteriovenous fistula, acquired. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 23 codes in category I77 (Other disorders of arteries and arterioles). The Alphabetic Index lists it under 5 entries. Its coding notes include 3 Excludes1 entries and 15 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • arteriovenous aneurysm NOS (Q27.3-)
  • presence of arteriovenous shunt (fistula) for dialysis (Z99.2)
  • traumatic - see injury of blood vessel by body region

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

This code
Inherited from I77 Other disorders of arteries and arterioles
  • collagen (vascular) diseases (M30-M36)
  • hypersensitivity angiitis (M31.0)
  • pulmonary artery (I28.-)
Also from chapter/block level (10 notes)
Inherited from Chapter 9 Diseases of the circulatory system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Cardiac and Circulatory clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Inclusion terms

Conditions classified to this code.

This code
  • Aneurysmal varix
  • Arteriovenous aneurysm, acquired

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 5 entries