ICD-10-CM Code For Rheumatic Chorea: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group I02 includes diagnoses for rheumatic chorea, the neurologic movement disorder manifestation of acute rheumatic fever typically following group A streptococcal infection. These ICD-10-CM diagnosis codes are used to document neurologic involvement and movement disorder severity in the setting of acute rheumatic fever, capturing clinical complexity and organ system involvement. Accurate coding within the ICD-10-CM I02 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM I02: Rheumatic Chorea Overview

The diagnoses in the ICD-10-CM I02 group represent rheumatic chorea as a manifestation of acute rheumatic fever, affecting the central nervous system and causing involuntary, purposeless movements. These codes target neurologic sequelae arising from post-streptococcal autoimmune processes following pharyngitis. Accurate coding matters for appropriate clinical documentation, longitudinal tracking of complications, and correct reimbursement for services related to acute rheumatic fever complications.

When to Use

Use a code from this group when a patient has choreiform movements attributed to acute rheumatic fever following streptococcal infection. Apply these codes to document neurologic complications and to distinguish rheumatic chorea from other causes of chorea.

ICD-10-CM Codes

2 rows

ICD-10-CM Code	Description
I02.0	Rheumatic chorea with heart involvement
I02.9	Rheumatic chorea without heart involvement

DRG Codes

3 rows

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

Typical Clinical Scenarios

A school-aged child presents to the emergency department with abrupt onset of involuntary, irregular, purposeless movements of the limbs and face over several days, accompanied by emotional lability and recent history of untreated streptococcal pharyngitis. The neurologic exam and history are most consistent with Sydenham chorea as a major manifestation of acute rheumatic fever, prompting acute management and rheumatology/cardiology evaluation; a code for rheumatic chorea without further specification is assigned. Typical codes: I02.0
An adolescent is evaluated in an outpatient pediatric clinic months after a documented episode of acute rheumatic fever; they have persistent intermittent choreiform movements but no active carditis or other systemic features. The visit documents residual or ongoing rheumatic chorea as part of convalescence or chronic sequelae of the prior acute illness, and the appropriate code reflecting rheumatic chorea is used for follow-up care. Typical codes: I02.0
An adult admitted for decompensated heart failure is found on review to have a recent history of acute rheumatic fever with neurologic manifestations; the choreiform movements are noted as a comorbid condition complicating rehabilitation and medication selection. The rheumatic chorea is coded to capture the comorbidity related to the acute rheumatic process while the primary admission focuses on cardiac complications. Typical codes: I02.9, I02.0

ICD-10-CM Code For Rheumatic Fever Without Heart Involvement: Group Overview

I01-RHEUMATIC-FEVER-WITH-HEART-INVOLVEMENT

ICD-10-CM Code For Rheumatic Fever With Heart Involvement: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

2 rows

ICD-10-CM Code	Description
I02.0	Rheumatic chorea with heart involvement
I02.9	Rheumatic chorea without heart involvement

DRG Codes

3 rows

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

Typical Clinical Scenarios

A school-aged child presents to the emergency department with abrupt onset of involuntary, irregular, purposeless movements of the limbs and face over several days, accompanied by emotional lability and recent history of untreated streptococcal pharyngitis. The neurologic exam and history are most consistent with Sydenham chorea as a major manifestation of acute rheumatic fever, prompting acute management and rheumatology/cardiology evaluation; a code for rheumatic chorea without further specification is assigned. Typical codes: I02.0
An adolescent is evaluated in an outpatient pediatric clinic months after a documented episode of acute rheumatic fever; they have persistent intermittent choreiform movements but no active carditis or other systemic features. The visit documents residual or ongoing rheumatic chorea as part of convalescence or chronic sequelae of the prior acute illness, and the appropriate code reflecting rheumatic chorea is used for follow-up care. Typical codes: I02.0
An adult admitted for decompensated heart failure is found on review to have a recent history of acute rheumatic fever with neurologic manifestations; the choreiform movements are noted as a comorbid condition complicating rehabilitation and medication selection. The rheumatic chorea is coded to capture the comorbidity related to the acute rheumatic process while the primary admission focuses on cardiac complications. Typical codes: I02.9, I02.0

ICD-10-CM Code For Rheumatic Fever Without Heart Involvement: Group Overview

I01-RHEUMATIC-FEVER-WITH-HEART-INVOLVEMENT

ICD-10-CM Code For Rheumatic Fever With Heart Involvement: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Rheumatic Chorea: Group Overview

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ICD-10-CM I02: Rheumatic Chorea Overview

ICD-10-CM Code For Rheumatic Chorea: Group Overview

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ICD-10-CM I02: Rheumatic Chorea Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

ICD-10-CM Code For Rheumatic Chorea: Group Overview

Sign up for ICD-10-CM Code For Rheumatic Chorea: Group Overview policy alerts

ICD-10-CM I02: Rheumatic Chorea Overview

ICD-10-CM Code For Rheumatic Chorea: Group Overview

Sign up for ICD-10-CM Code For Rheumatic Chorea: Group Overview policy alerts

ICD-10-CM I02: Rheumatic Chorea Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What conditions are represented in the ICD-10-CM I02 group?

Which specific diagnosis codes are included in this group?

Why is accurate coding of `I02` diagnoses important for billing and reimbursement?

How do the I02 codes relate to DRG assignment?

What clinical scenario does rheumatic chorea describe in the context of acute rheumatic fever?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What conditions are represented in the ICD-10-CM I02 group?

Which specific diagnosis codes are included in this group?

Why is accurate coding of `I02` diagnoses important for billing and reimbursement?

How do the I02 codes relate to DRG assignment?

What clinical scenario does rheumatic chorea describe in the context of acute rheumatic fever?

References