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ICD-10 Guide
ICD-10 CodesI02.9

I02.9

Billable

Rheumatic chorea without heart involvement

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 I02.9 is a billable code used to indicate a diagnosis of rheumatic chorea without heart involvement.

Key Diagnostic Point:

Rheumatic chorea, also known as Sydenham's chorea, is a neurological disorder characterized by involuntary, rapid, and irregular movements, primarily affecting the face, hands, and feet. It is a complication of rheumatic fever, which is a consequence of untreated streptococcal throat infection. The condition typically arises in children and adolescents, often following a streptococcal infection, and is not associated with heart involvement in this specific coding. The pathophysiology involves an autoimmune response where antibodies produced against streptococcal bacteria mistakenly attack the basal ganglia in the brain, leading to the characteristic chorea. Diagnosis is primarily clinical, based on the presence of chorea and a history of rheumatic fever, with no evidence of cardiac involvement. Diagnostic considerations include ruling out other causes of chorea, such as Huntington's disease or drug-induced movements. Treatment focuses on symptomatic relief, often utilizing antiepileptic medications or neuroleptics, and addressing any underlying streptococcal infection with antibiotics.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misclassifying rheumatic chorea with heart involvement.
  • Documentation gaps may arise if the history of rheumatic fever is not clearly stated.
  • Billing challenges can occur if the treatment plan does not align with the diagnosis.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Neurology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Rheumatic chorea, while less common, can significantly impact affected individuals, particularly children, leading to disruptions in daily activities and schooling. Understanding its epidemiology is crucial, as it is often a marker for rheumatic fever, which can have broader implications for population health. Effective management and early intervention can improve quality of life and reduce healthcare utilization associated with complications.

ICD-9 vs ICD-10

Rheumatic chorea, while less common, can significantly impact affected individuals, particularly children, leading to disruptions in daily activities and schooling. Understanding its epidemiology is crucial, as it is often a marker for rheumatic fever, which can have broader implications for population health. Effective management and early intervention can improve quality of life and reduce healthcare utilization associated with complications.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the diagnosis is clearly linked to the services provided. Common denials may arise if documentation does not adequately support the diagnosis or if there is confusion with related codes. Best practices include maintaining clear records of the patient's symptoms, treatment responses, and follow-up care to substantiate claims.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by I02.9?

I02.9 specifically covers rheumatic chorea that occurs without any associated heart involvement. It is important to differentiate this from other forms of chorea and rheumatic fever complications that may affect the heart.

When should I02.9 be used instead of related codes?

I02.9 should be used when the patient presents with chorea following rheumatic fever but shows no signs of heart involvement. If cardiac symptoms are present, I02.0 should be used instead.

What documentation supports I02.9?

Documentation should include a clear history of rheumatic fever, clinical findings of chorea, and explicit statements indicating the absence of heart involvement. Neurological assessments and treatment plans should also be documented.