FY2027 ICD-10-CM reference
I77: Other disorders of arteries and arterioles
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Other disorders of arteries and arterioles. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
Oct to Dec 2026, PY2027
CMS-HCC V28
Not applicableCMS-HCC V24
Not applicableESRD
Not applicableRxHCC
Not applicablePACE (CMS-HCC V22 component)
Not applicablePACE ESRD (ESRD V21 component)
Not applicablePACE RxHCC (2018/2019 component)
Not applicableJan to Sep 2027, PY2028
CMS-HCC V28
Not applicableCMS-HCC V24
Not applicableESRD
Not applicableRxHCC
Not applicablePACE (CMS-HCC V22 component)
Not applicablePACE ESRD (ESRD V21 component)
Not applicablePACE RxHCC component
Not applicableOct to Dec 2026, BY2026
HHS-HCC
Not applicableJan to Sep 2027, BY2027
HHS-HCC
Not applicableMore specific FY2027 codes
- I77.0: Arteriovenous fistula, acquiredBillable code
- I77.1: Stricture of arteryBillable code
- I77.2: Rupture of arteryBillable code
- I77.3: Arterial fibromuscular dysplasiaBillable code
- I77.4: Celiac artery compression syndromeBillable code
- I77.5: Necrosis of arteryBillable code
- I77.6: Arteritis, unspecifiedBillable code
- I77.7: Other arterial dissectionNonbillable heading
- I77.8: Other specified disorders of arteries and arteriolesNonbillable heading
- I77.9: Disorder of arteries and arterioles, unspecifiedBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: I00-I99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: I00-I99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: I00-I99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: I00-I99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: I00-I99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: I00-I99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: I00-I99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: I00-I99 (chapter, inherited).
Excludes2
systemic connective tissue disorders (M30-M36)
Source: I00-I99 (chapter, inherited).
Excludes2
transient cerebral ischemic attacks and related syndromes (G45.-)
Source: I00-I99 (chapter, inherited).
Excludes2
collagen (vascular) diseases (M30-M36)
Source: I77 (category, direct).
Excludes2
hypersensitivity angiitis (M31.0)
Source: I77 (category, direct).
Excludes2
pulmonary artery (I28.-)
Source: I77 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does I77 mean in FY2027?
The official ICD-10-CM descriptor is Other disorders of arteries and arterioles. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is I77 billable in FY2027?
The FY2027 order file marks I77 as a nonbillable heading. Select a complete billable child code.
Does I77 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition