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Home/Diagnosis/ICD-10 Coding for Maculopapular Rash

ICD-10 Coding for Maculopapular Rash

R21
L51.9
B09

Complete ICD-10-CM coding and documentation guide for icd-10 coding for maculopapular rash includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Morbilliform Rash
Erythematous Rash
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Key Information: ICD-10 Coding for Maculopapular Rash

Essential facts and insights about ICD-10 Coding for Maculopapular Rash

Use ICD-10 code R21 for rash and other nonspecific skin eruption, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Rash and other nonspecific skin eruption

Billable Code
R21
Billable

Diagnostic Criteria

clinical:
  • • No specific cause identified for the rash.
coding:
  • • No lab confirmation of infection or drug involvement.

Applicable To

  • • Nonspecific rash
  • • Idiopathic rash

Important Notes

  • • Ensure exclusion of specific etiologies before using R21.

Erythema, unspecified

Billable Code
L51.9
Billable

Diagnostic Criteria

clinical:
  • • Temporal relationship to medication
  • • Resolution after discontinuation of the drug

Applicable To

  • • Drug-induced erythema

Important Notes

  • • Document the drug and temporal relationship clearly.

Viral exanthem, unspecified

Billable Code
B09
Billable

Diagnostic Criteria

clinical:
  • • Positive PCR or serology for viral infection
  • • Presence of fever and prodrome

Applicable To

  • • Viral rash

Important Notes

  • • Ensure viral infection is confirmed through lab tests.
Ancillary Codes

Additional codes that may be used with this diagnosis

T36-T50

Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances

Use to specify the drug responsible for a drug-induced rash.

Frequently Asked Questions

What is the ICD-10 code for maculopapular rash?

The ICD-10 code for a nonspecific maculopapular rash is R21. For drug-induced rashes, use L51.9 with appropriate drug codes.

How do you code a drug-induced maculopapular rash?

Code a drug-induced maculopapular rash with L51.9 and include the specific drug code from T36-T50.

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