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v1.0.0
ICD-10 Guide
ICD-10 CodesR20.9

R20.9

Unspecified disturbances of skin sensation

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

Code Description

ICD-10 R20.9 is a billable code used to indicate a diagnosis of unspecified disturbances of skin sensation.

Key Diagnostic Point:

R20.9 refers to unspecified disturbances of skin sensation, which encompasses a range of sensory abnormalities affecting the skin, including numbness, tingling, burning sensations, or altered sensitivity. These disturbances can arise from various underlying conditions, including neurological disorders, metabolic issues, or dermatological problems. Patients may present with symptoms such as paresthesia, dysesthesia, or allodynia, which can significantly impact their quality of life. The clinical context often requires a thorough evaluation to determine the underlying cause, as the symptoms can be indicative of conditions such as peripheral neuropathy, multiple sclerosis, or vitamin deficiencies. Diagnostic approaches typically involve a detailed patient history, physical examination, and may include nerve conduction studies or imaging to identify any structural abnormalities. Given the broad nature of this code, it is essential for coders to ensure that the documentation supports the diagnosis and that any specific underlying conditions are accurately captured.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for thorough documentation to support unspecified nature
  • Differentiation from other sensory disturbances
  • Potential overlap with other ICD-10 codes

Audit Risk Factors

  • Insufficient documentation of symptoms
  • Failure to specify underlying conditions
  • Inconsistent coding with clinical findings
  • Lack of follow-up documentation

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, including onset, duration, and characteristics of symptoms; any relevant medical history; and results from neurological examinations.

Common Clinical Scenarios

Patients presenting with unexplained numbness or tingling in extremities, often requiring further investigation for underlying conditions.

Billing Considerations

Ensure that any neurological assessments are documented, and consider the need for referrals to specialists if a specific cause is suspected.

Emergency Medicine

Documentation Requirements

Acute care documentation must include a rapid assessment of symptoms, potential trauma history, and any immediate interventions performed.

Common Clinical Scenarios

Patients presenting with acute onset of sensory disturbances following trauma or in the context of acute illness.

Billing Considerations

Document any immediate treatments provided and consider the need for urgent imaging or specialist consultation.

Coding Guidelines

Inclusion Criteria

Use R20.9 When
  • Coders should follow official ICD
  • CM guidelines, ensuring that the code is used only when the disturbance of skin sensation is not specified elsewhere
  • Documentation must support the use of this code, particularly in cases where further investigation is warranted

Exclusion Criteria

Do NOT use R20.9 When
No specific exclusions found.

Related CPT Codes

959.01CPT Code

Nerve conduction studies

Clinical Scenario

Used to evaluate the cause of sensory disturbances.

Documentation Requirements

Document the rationale for the study and findings.

Specialty Considerations

Neurology may require specific documentation standards for nerve studies.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specificity in coding, but R20.9 remains a broad code that requires careful documentation to avoid misinterpretation and ensure accurate billing.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specificity in coding, but R20.9 remains a broad code that requires careful documentation to avoid misinterpretation and ensure accurate billing.

Reimbursement & Billing Impact

billing.

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

When should R20.9 be used?

R20.9 should be used when a patient presents with disturbances of skin sensation that cannot be classified under a more specific diagnosis. Documentation must support the unspecified nature of the symptoms.