Is ICD-10-CM code I79 billable?

No, I79 (Disorders of arteries, arterioles and capillaries in diseases classified elsewhere) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code I79 belong to?

I79 belongs to Chapter 9 of the ICD-10-CM tabular list: I00–I99 (Diseases of the Circulatory System).

I79

Non-Billable

ChapterI00–I99

Rankcategory

Description

Disorders of arteries, arterioles and capillaries in diseases classified elsewhere

About ICD-10-CM code I79

Under I00-I99 Diseases of the Circulatory System, within Diseases of arteries, arterioles and capillaries (I70-I79), ICD-10-CM code I79 describes Disorders of arteries, arterioles and capillaries in diseases classified elsewhere. This code cannot be billed directly because more specific child codes exist beneath it.

Use a more specific code (3 billable)

I79.0Aneurysm of aorta in diseases classified elsewhere I79.1Aortitis in diseases classified elsewhere I79.8Other disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
systemic connective tissue disorders (M30-M36)
transient cerebral ischemic attacks and related syndromes (G45.-)

Clinical Hierarchy

BillableHas subcodes

CH9Diseases of the circulatory system (I00-I99)

I70-I79Diseases of arteries, arterioles and capillaries (I70-I79)

I79Disorders of arteries, arterioles and capillaries in diseases classified elsewhereNot billable

I79.0Aneurysm of aorta in diseases classified elsewhereBillable

I79.1Aortitis in diseases classified elsewhereBillable

I79.8Other disorders of arteries, arterioles and capillaries in diseases classified elsewhereBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I79:

chapterCH9

Diseases of the circulatory system (I00-I99)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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