ICD-10 I77
Non-Billable HeaderOther disorders of arteries and arterioles
About ICD-10-CM I77
ICD-10-CM code I77 represents Other disorders of arteries and arterioles. This is a non-billable header code in the Circulatory System chapter (block I77). The 2026 edition of ICD-10-CM I77 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 2 Excludes
Not included here, the excluded code is not part of I77, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- collagen (vascular) diseases (M30-M36)
- hypersensitivity angiitis (M31.0)
- pulmonary artery (I28.-)
Medicare LCD Coverage for I77
Local Coverage Determinations (LCDs) from CMS MACs that list I77 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I77.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but I77 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with I77
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 75820 Duplex scan of the extremities for peripheral artery disease Cardiovascular Disease
- 75822 Duplex scan of the carotid arteries for stroke evaluation Cardiovascular Disease
- 75860 Angiography of the extremities for peripheral artery disease Cardiovascular Disease
- 75861 Angiography of the carotid arteries for stroke evaluation Cardiovascular Disease
- 75862 Angiography of the abdominal aorta for aneurysm evaluation Cardiovascular Disease
- 75863 Angiography of the thoracic aorta for aneurysm evaluation Cardiovascular Disease
Codes Adjacent To I77
Other codes in section I70-I79 (Diseases of arteries, arterioles and capillaries).
ICD-10 I77, Billing FAQ
Is ICD-10 code I77 billable? +
No, I77 is a non-billable header code. Use a more specific child code from block I77 when submitting claims.
What codes are Type 2 Excludes for I77? +
Type 2 Excludes (may be coded together when both conditions exist): collagen (vascular) diseases (M30-M36); hypersensitivity angiitis (M31.0); pulmonary artery (I28.-)
What CPT codes are commonly billed with I77? +
Procedures frequently paired with I77 include: 75820, 75822, 75860, 75861, 75862.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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