I09

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Other rheumatic heart diseases

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here)
  • 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

CH9Diseases of the circulatory system (I00-I99)
I05-I09Chronic rheumatic heart diseases (I05-I09)
I09Other rheumatic heart diseases
I09.0Rheumatic myocarditis
I09.1Rheumatic diseases of endocardium, valve unspecified
I09.2Chronic rheumatic pericarditis
I09.8Other specified rheumatic heart diseases
I09.9Rheumatic heart disease, unspecified

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

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to I09. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Adherent1 unique routes
pericardium (nonrheumatic)
rheumatic→I09
Adhesions, adhesive (postinfective)3 unique routes
cardiac
rheumatic→I09
heart
rheumatic→I09
pericardium (nonrheumatic)
rheumatic→I09
Arteritis1 unique routes
coronary (artery)
rheumatic
chronic→I09
Cardiomyopathy (familial) (idiopathic)1 unique routes
rheumatic→I09
Concretio cordis1 unique routes
rheumatic→I09
Degeneration, degenerative2 unique routes
myocardial, myocardium (fatty) (hyaline) (senile)(2 variants)
with rheumatic fever (conditions in I00)→I09(2 variants)
inactive or quiescent (with chorea)→I09
Disease, diseased5 unique routes
heart (organic)(4 variants)
rheumatic (chronic) (inactive) (old) (quiescent) (with chorea)→I09(2 variants)
specified NEC→I09
with(2 variants)
rheumatic fever (conditions in I00)(2 variants)
inactive or quiescent (with chorea)→I09(2 variants)
specified NEC→I09
pulmonary
valve
rheumatic→I09
Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)4 unique routes
pulmonary (chronic) (heart) (valve)(2 variants)
rheumatic (chronic) (inactive) (with chorea)→I09
with rheumatic fever (conditions in I00)
inactive or quiescent (with chorea)→I09
rheumatic (chronic) (inactive) (with chorea)→I09
with rheumatic fever (conditions in I00)
inactive or quiescent (with chorea)→I09
Failure, failed5 unique routes
heart (acute) (senile) (sudden)(3 variants)
congestive(2 variants)
rheumatic (chronic) (inactive) (with chorea)→I09
with rheumatic fever (conditions in I00)
inactive or quiescent (with chorea)→I09
rheumatic (chronic) (inactive)→I09
ventricular(2 variants)
left(2 variants)
rheumatic (chronic) (inactive) (with chorea)→I09
with rheumatic fever (conditions in I00)
inactive or quiescent (with chorea)→I09
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)2 unique routes
rheumatic (active) (acute) (chronic) (subacute)(2 variants)
inactive or quiescent with(2 variants)
cardiac hypertrophy→I09
carditis→I09

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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