Is ICD-10-CM code I09 billable?

No, I09 (Other rheumatic heart diseases) 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 I09 belong to?

I09 belongs to Chapter 9 of the ICD-10-CM tabular list: I00–I99 (Diseases of the Circulatory System).

I09

Non-Billable

ChapterI00–I99

Rankcategory

Description

Other rheumatic heart diseases

About ICD-10-CM code I09

Other rheumatic heart diseases is classified in ICD-10-CM as code I09, part of I00-I99 Diseases of the Circulatory System, within Chronic rheumatic heart diseases (I05-I09). Its status is non-billable, meaning reporting it requires a deeper, more specific code.

Use a more specific code (4 billable, 1 non-billable)

I09.0Rheumatic myocarditis I09.1Rheumatic diseases of endocardium, valve unspecified I09.2Chronic rheumatic pericarditis I09.8Other specified rheumatic heart diseaseshas subcodes I09.9Rheumatic heart disease, 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)

I05-I09Chronic rheumatic heart diseases (I05-I09)

I09Other rheumatic heart diseasesNot billable

I09.0Rheumatic myocarditisBillable

I09.1Rheumatic diseases of endocardium, valve unspecifiedBillable

I09.2Chronic rheumatic pericarditisBillable

I09.8Other specified rheumatic heart diseasesSubcodes

I09.9Rheumatic heart disease, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I09:

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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