Is ICD-10-CM code I78 billable?

No, I78 (Diseases of capillaries) 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 I78 belong to?

I78 belongs to Chapter 9 of the ICD-10-CM tabular list: I00–I99 (Diseases of the Circulatory System).

I78

Non-Billable

ChapterI00–I99

Rankcategory

Description

Diseases of capillaries

About ICD-10-CM code I78

I78 is the ICD-10-CM diagnosis code for Diseases of capillaries. It sits in I00-I99 Diseases of the Circulatory System, within Diseases of arteries, arterioles and capillaries (I70-I79). I78 is not billable on its own, coders must choose one of its more specific child codes instead.

Use a more specific code (4 billable)

I78.0Hereditary hemorrhagic telangiectasia I78.1Nevus, non-neoplastic I78.8Other diseases of capillaries I78.9Disease of capillaries, unspecified

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)

I78Diseases of capillariesNot billable

I78.0Hereditary hemorrhagic telangiectasiaBillable

I78.1Nevus, non-neoplasticBillable

I78.8Other diseases of capillariesBillable

I78.9Disease of capillaries, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I78:

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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