I77.6
Billable codeArteritis, unspecified
The ICD-10 code for arteritis, unspecified is I77.6.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Aortitis NOS
- Endarteritis NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- I77.0Arteriovenous fistula, acquired
- I77.1Stricture of artery
- I77.2Rupture of artery
- I77.3Arterial fibromuscular dysplasia
- I77.4Celiac artery compression syndrome
- I77.5Necrosis of artery
- I77.7Other arterial dissectionnon-billable header
- I77.8Other specified disorders of arteries and arteriolesnon-billable header
- I77.9Disorder of arteries and arterioles, unspecified
- I77.6Arteritis, unspecified
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 4476
Associated MS-DRGs
I77.6 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.