Is ICD-10-CM code I05 billable?

No, I05 (Rheumatic mitral valve 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 I05 belong to?

I05 belongs to Chapter 9 of the ICD-10-CM tabular list: I00–I99 (Diseases of the Circulatory System).

I05

Non-Billable

ChapterI00–I99

Rankcategory

Description

Rheumatic mitral valve diseases

About ICD-10-CM code I05

Rheumatic mitral valve diseases is classified in ICD-10-CM as code I05, 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 (5 billable)

I05.0Rheumatic mitral stenosis I05.1Rheumatic mitral insufficiency I05.2Rheumatic mitral stenosis with insufficiency I05.8Other rheumatic mitral valve diseases I05.9Rheumatic mitral valve 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.-)

Instructional Notes

Includes

conditions classifiable to both I05.0 and I05.2-I05.9, whether specified as rheumatic or not

Excludes1(Not coded here. Use a different code.)

mitral valve disease specified as nonrheumatic (I34.-)
mitral valve disease with aortic and/or tricuspid valve involvement (I08.-)

Clinical Hierarchy

BillableHas subcodes

CH9Diseases of the circulatory system (I00-I99)

I05-I09Chronic rheumatic heart diseases (I05-I09)

I05Rheumatic mitral valve diseasesNot billable

I05.0Rheumatic mitral stenosisBillable

I05.1Rheumatic mitral insufficiencyBillable

I05.2Rheumatic mitral stenosis with insufficiencyBillable

I05.8Other rheumatic mitral valve diseasesBillable

I05.9Rheumatic mitral valve disease, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I05:

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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