I77.6
Billable

Arteritis, unspecified

Billable / Specific Code

What is Arteritis, unspecified?

ICD-10-CM I77.6 is the diagnosis code for Arteritis, unspecified. This code falls under the section "Diseases of arteries, arterioles and capillaries" within Chapter 9 — Diseases of the circulatory system (I00-I99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for I77.6

✅ This Code Includes

  • Aortitis NOS
  • Endarteritis NOS

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as I77.6. They are mutually exclusive:

  • 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.-)

ICD-10-CM Code Hierarchy

Understanding where I77.6 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

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

Yes, I77.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does I77.6 mean?

I77.6 is the ICD-10-CM diagnosis code for "Arteritis, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of I77.6?

The parent code of I77.6 is I77 ("Other disorders of arteries and arterioles"). I77.6 provides a more specific classification within this category.

What section is I77.6 in?

I77.6 is located in Section I70-I79 — "Diseases of arteries, arterioles and capillaries" within Chapter 9 of the ICD-10-CM Tabular List.

When should I use I77.6?

Use I77.6 when the patients documented diagnosis matches "Arteritis, unspecified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Arteritis, unspecified?

The ICD-10-CM code for Arteritis, unspecified is I77.6.

Can I77.6 be used for primary diagnosis?

Yes, I77.6 can be used as a primary diagnosis code since it is billable and specific.

What chapter is I77.6 in?

I77.6 is in Chapter 9 of the ICD-10-CM Tabular List.

What conditions are excluded from I77.6?

Type 1 Excludes for I77.6 include: arteritis or endarteritis:; aortic arch (M31.4); cerebral NEC (I67.7) and more.

Is I77.6 valid for 2026?

Yes, I77.6 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousI77.5Necrosis of arteryNext →I77.7Other arterial dissection
Code Details
I77.6
Arteritis, unspecified
Billable / Specific Code
9 — Diseases of the circulatory system (I00-I99)
I70-I79 — Diseases of arteries, arterioles and capillaries
2026 ICD-10-CM