2026 ICD-10-CM Diagnosis Code I02.0Rheumatic chorea with heart involvement

ICD-10-CM Codes›I00–I99›I00-I02›I02

ICD-10-CM I02.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I02.0 is a billable ICD-10-CM diagnosis code for rheumatic chorea with heart involvement. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 314 through 316. Coders also document this condition as autoimmune movement disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Acute rheumatic heart disease and Endocarditis and endocardial disease.

Code Identity

ICD-10-CM Code
I02.0
Billable Status
Yes — Valid for Submission
Code Describes
Rheumatic chorea with heart involvement
Short Description
Rheumatic chorea with heart involvement
Same as the full description in the CMS dataset.
Parent Code
I02
Rheumatic chorea

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI00-I02Acute rheumatic fever
CategoryI02Rheumatic chorea
This CodeI02.0Rheumatic chorea with heart involvement

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Autoimmune movement disorder
  • Carditis due to rheumatic fever
  • Chorea due to and following infective disorder
  • Chorea due to immunological disorder
  • Rheumatic chorea
  • Rheumatic chorea with heart involvement

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Chorea NOS with heart involvement
  • Rheumatic chorea with heart involvement of any type classifiable under I01

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Chorea(chronic) (gravis) (posthemiplegic) (senile) (spasmodic)
      • with
        • heart involvement
    • Chorea(chronic) (gravis) (posthemiplegic) (senile) (spasmodic)
      • with
        • heart involvement
          • active or acute (conditions in I01-)
    • Chorea(chronic) (gravis) (posthemiplegic) (senile) (spasmodic)
      • with
        • heart involvement
          • rheumatic
            • with valvular disorder
    • Chorea(chronic) (gravis) (posthemiplegic) (senile) (spasmodic)
      • minor
        • with heart involvement
    • Chorea(chronic) (gravis) (posthemiplegic) (senile) (spasmodic)
      • rheumatic (chronic)
        • with heart involvement
    • Degeneration, degenerative
      • myocardial, myocardium (fatty) (hyaline) (senile)
        • with rheumatic fever (conditions in I00)
          • active, acute or subacute
            • with chorea
    • Disease, diseased
      • heart (organic)
        • with
          • rheumatic fever (conditions in I00)
            • active
              • with chorea
    • Disease, diseased
      • heart (organic)
        • rheumatic (chronic) (inactive) (old) (quiescent) (with chorea)
          • active or acute
            • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • acute or subacute
        • rheumatic (aortic) (mitral) (pulmonary) (tricuspid)
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • aortic (heart) (nonrheumatic) (valve)
        • with
          • mitral disease
            • active or acute
              • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • aortic (heart) (nonrheumatic) (valve)
        • rheumatic
          • with mitral disease
            • active or acute
              • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • aortic (heart) (nonrheumatic) (valve)
        • rheumatic
          • active or acute
            • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea)
        • with
          • aortic (valve) disease
            • active or acute
              • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea)
        • active or acute
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • pulmonary (chronic) (heart) (valve)
        • acute or subacute
          • rheumatic
            • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • pulmonary (chronic) (heart) (valve)
        • rheumatic (chronic) (inactive) (with chorea)
          • active or acute
            • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • rheumatic (chronic) (inactive) (with chorea)
        • active or acute (aortic) (mitral) (pulmonary) (tricuspid)
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Endocarditis(chronic) (marantic) (nonbacterial) (thrombotic) (valvular)
      • tricuspid (chronic) (heart) (inactive) (rheumatic) (valve) (with chorea)
        • active or acute
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Failure, failed
      • heart (acute) (senile) (sudden)
        • congestive
          • rheumatic (chronic) (inactive) (with chorea)
            • active or acute
              • with chorea
    • Failure, failed
      • ventricular
        • left
          • with rheumatic fever (conditions in I00)
            • active
              • with chorea
    • Failure, failed
      • ventricular
        • left
          • rheumatic (chronic) (inactive) (with chorea)
            • active or acute
              • with chorea
    • Hypertrophy, hypertrophic
      • cardiac (chronic) (idiopathic)
        • rheumatic (with chorea)
          • active or acute
            • with chorea
    • Insufficiency, insufficient
      • mitral (valve)
        • rheumatic
          • active or acute
            • with chorea, rheumatic (Sydenham's)
    • Insufficiency, insufficient
      • myocardial, myocardium (with arteriosclerosis)
        • with
          • rheumatic fever (conditions in I00)
            • active, acute or subacute
              • with chorea
    • Myocarditis(with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)
      • active
        • rheumatic
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Myocarditis(with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)
      • acute or subacute (interstitial)
        • rheumatic
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Myocarditis(with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)
      • rheumatic (chronic) (inactive) (with chorea)
        • active or acute
          • with chorea (acute) (rheumatic) (Sydenham's)
    • Pericarditis(with decompensation) (with effusion)
      • acute (hemorrhagic) (nonrheumatic) (Sicca)
        • with chorea (acute) (rheumatic) (Sydenham's)
    • Pericarditis(with decompensation) (with effusion)
      • acute (hemorrhagic) (nonrheumatic) (Sicca)
        • rheumatic
          • with chorea (acute) (Sydenham's)
    • Pericarditis(with decompensation) (with effusion)
      • rheumatic (active) (acute) (with effusion) (with pneumonia)
        • with chorea (acute) (rheumatic) (Sydenham's)
    • Rheumatic(acute) (subacute)
      • myocarditis (chronic) (inactive) (with chorea)
        • with chorea (acute) (rheumatic) (Sydenham's)
    • Rheumatic(acute) (subacute)
      • pancarditis, acute
        • with chorea (acute (rheumatic) Sydenham's)
    • Rheumatic(acute) (subacute)
      • pericarditis (active) (acute) (with effusion) (with pneumonia)
        • with chorea (acute) (rheumatic) (Sydenham's)
    • Stenosis, stenotic(cicatricial)
      • mitral (chronic) (inactive) (valve)
        • active or acute
          • with rheumatic or Sydenham's chorea

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR002
Acute rheumatic heart disease
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR CIR004
Endocarditis and endocardial disease
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Movement Disorders

Movement disorders are neurologic conditions that cause problems with movement, such as:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert I02.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
392.0 Rheum chorea w hrt invol
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I02.0Overview

Is I02.0 (Rheumatic chorea) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report rheumatic chorea with heart involvement on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I02.0 group to?

When rheumatic chorea with heart involvement is the principal diagnosis on an inpatient stay, it groups to MS-DRG 314, 315, 316, with relative weights from 0.6821 to 2.0852 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I02.0?

Under the General Equivalence Mappings, rheumatic chorea with heart involvement converts to ICD-9-CM 392.0 (rheum chorea w hrt invol). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.