Is I77.6 a billable ICD-10-CM code?

Yes. I77.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I77.6 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).

What cannot be coded together with I77.6?

I77.6 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

I77.6

I77.6 — Arteritis, unspecified

Billable / specific codeICD-10-CM

I77.6 is a billable, specific ICD-10-CM code for arteritis, unspecified. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

arteritis or endarteritis:
aortic arch (M31.4)
cerebral NEC (I67.7)
coronary (I25.89)
deformans (I70.-)
giant cell (M31.5, M31.6)
obliterans (I70.-)
senile (I70.-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Aortitis NOS
Endarteritis NOS

Risk adjustment

I77.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

I77.6 is named in 16 Medicare coverage policies — 16 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
A52996Billing and Coding: Routine Foot Care
A55639Billing and Coding: Chemotherapy Agents for Non-Oncologic Conditions
A56380Billing and Coding: Rituximab

How I77.6 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I77.6.

Angiitis
Aortitis(nonsyphilitic) (calcific)
Arteriolitis
Arteritis
Endarteritis(bacterial, subacute) (infective)
Vasculitis
Arteritis›aorta(nonsyphilitic)
Vasculitis›disseminated

Related codes at this level

Codes that share I77. If I77.6 is not quite right, the correct code is usually one of these.

Questions about I77.6

Is I77.6 a billable ICD-10-CM code?: Yes. I77.6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I77.6 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).
What cannot be coded together with I77.6?: I77.6 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.