I02.9

Billable
ChapterI00–I99
Ranksubcategory
Official Description

Rheumatic chorea without heart involvement

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

Instructional Notes

Includes
  • Rheumatic chorea NOS
General instructions are available for the parent sections:
View CH9 NotesView I02 Notes

Clinical Hierarchy

CH9Diseases of the circulatory system (I00-I99)
I00-I02Acute rheumatic fever (I00-I02)
I02Rheumatic chorea
I02.9Rheumatic chorea without heart involvement

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I02.9:

categoryI02
Rheumatic chorea
View context instructions
chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to I02.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

5 raw paths
Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)4 unique routes
minor→I02.9
rheumatic (chronic)→I02.9
Sydenham's→I02.9
with
heart involvement
rheumatic→I02.9
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)1 unique routes
rheumatic (active) (acute) (chronic) (subacute)
with central nervous system involvement→I02.9

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 314
Other Circulatory System Diagnoses with MCC
DRG 315
Other Circulatory System Diagnoses with CC
DRG 316
Other Circulatory System Diagnoses without CC/MCC

Cross Reference

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