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v1.0.0
ICD-10 Guide
ICD-10 CodesR05

R05

Cough

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R05 is a billable code used to indicate a diagnosis of cough.

Key Diagnostic Point:

Cough is a common symptom characterized by the involuntary expulsion of air from the lungs, often accompanied by a sound. It serves as a protective reflex to clear the airways of irritants, secretions, or foreign particles. Cough can be acute, lasting less than three weeks, or chronic, persisting for more than eight weeks. The clinical context of cough is broad, encompassing various etiologies such as infections (viral or bacterial), allergies, asthma, chronic obstructive pulmonary disease (COPD), gastroesophageal reflux disease (GERD), and environmental irritants. The diagnostic approach typically involves a thorough history and physical examination, focusing on the duration, characteristics, and associated symptoms of the cough. Laboratory findings may include sputum analysis, chest X-rays, or pulmonary function tests to identify underlying causes. Accurate coding of cough requires careful documentation of its characteristics and any associated conditions, as it can significantly impact treatment and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes requiring differential diagnosis
  • Need for detailed documentation of cough characteristics
  • Potential overlap with other respiratory codes
  • Variability in clinical presentation based on etiology

Audit Risk Factors

  • Inadequate documentation of cough characteristics
  • Failure to specify acute vs. chronic cough
  • Misuse of related respiratory codes
  • Lack of supporting clinical findings for the diagnosis

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed history of cough onset, duration, and associated symptoms (e.g., fever, sputum production).

Common Clinical Scenarios

Patients presenting with chronic cough due to asthma or GERD.

Billing Considerations

Consider comorbidities that may contribute to cough, such as heart failure or lung disease.

Emergency Medicine

Documentation Requirements

Acute assessment of cough, including vital signs and any immediate interventions.

Common Clinical Scenarios

Patients with acute cough due to pneumonia or anaphylaxis.

Billing Considerations

Rapid assessment and documentation of life-threatening conditions associated with cough.

Coding Guidelines

Inclusion Criteria

Use R05 When
  • Follow official ICD
  • CM guidelines for coding symptoms, ensuring that the cough is documented with sufficient detail to support the diagnosis
  • Use additional codes to capture underlying conditions when applicable

Exclusion Criteria

Do NOT use R05 When
No specific exclusions found.

Related Codes

Child Codes

6 codes
R05.1
Acute cough
R05.2
Subacute cough
R05.3
Chronic cough
R05.4
Cough syncope
R05.8
Other specified cough
R05.9
Cough, unspecified

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used when evaluating a patient with cough in an outpatient setting.

Documentation Requirements

Document history, examination findings, and medical decision-making.

Specialty Considerations

Internal medicine may require more detailed documentation of chronic conditions.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of cough, enabling better tracking of symptoms and associated conditions. This specificity aids in clinical research and quality improvement initiatives.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of cough, enabling better tracking of symptoms and associated conditions. This specificity aids in clinical research and quality improvement initiatives.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the difference between acute and chronic cough?

Acute cough lasts less than three weeks and is often associated with infections, while chronic cough persists for more than eight weeks and may indicate underlying conditions such as asthma or GERD.