ICD-10-CM 2027
ICD-10 code for Endarteritis
From the official ICD-10-CM alphabetic index entry “Endarteritis (bacterial, subacute) (infective)”. Page updated September 29, 2026.
About coding Endarteritis
The ICD-10-CM code for Endarteritis is I77.6 (Arteritis, unspecified). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I77.6.
Within I77, choose I77.6 (Arteritis, unspecified) only when documentation doesn't support a more specific option: arteriovenous fistula, acquired (I77.0), stricture of artery (I77.1), rupture of artery (I77.2), arterial fibromuscular dysplasia (I77.3), celiac artery compression syndrome (I77.4), necrosis of artery (I77.5), other arterial dissection (I77.7), other specified disorders of arteries and arterioles (I77.8) and 1 more.
Don't report I77.6 together with the conditions in its Excludes1 note: aortic arch (M31.4), cerebral NEC (I67.7), coronary (I25.89), deformans (I70.-) and 3 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific Endarteritis codes (official index)
- brain I67.7 — Cerebral arteritis, not elsewhere classified
- cerebral or cerebrospinal I67.7 — Cerebral arteritis, not elsewhere classified
- deformans
- embolic
- obliterans
- pulmonary I28.8 — Other diseases of pulmonary vessels
- pulmonary I28.8 — Other diseases of pulmonary vessels
- retina
- senile
- syphilitic A52.09 — Other cardiovascular syphilis
- brain or cerebral A52.04 — Syphilitic cerebral arteritis
- congenital A50.54 — Late congenital cardiovascular syphilis
- tuberculous A18.89 — Tuberculosis of other sites
Don't confuse with (Excludes1 for I77.6)
Common questions about Endarteritis ICD-10 codes
What is the ICD-10 code for Endarteritis?
- I77.6 — Arteritis, unspecified. More specific codes apply when the documentation supports them: I67.7, I67.7, I28.8, I28.8 and others below.
What is the ICD-10 code for brain endarteritis?
- I67.7 — Cerebral arteritis, not elsewhere classified.
What is the ICD-10 code for cerebral or cerebrospinal endarteritis?
- I67.7 — Cerebral arteritis, not elsewhere classified.
What is the ICD-10 code for pulmonary endarteritis?
- I28.8 — Other diseases of pulmonary vessels.
What is the ICD-10 code for syphilitic endarteritis?
- A52.09 — Other cardiovascular syphilis.
What is the ICD-10 code for tuberculous endarteritis?
- A18.89 — Tuberculosis of other sites.
Is I77.6 billable?
- Yes. I77.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I77.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I77.6 as a principal diagnosis.
Is I77.6 a CC or MCC?
- No. I77.6 is neither a CC nor an MCC under MS-DRG v44.0.