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Home/Diagnosis/ICD-10 Coding for Pityriasis Rosea

ICD-10 Coding for Pityriasis Rosea

L42

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

Also Known as:
PR
Herald Patch Rash
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Key Information: ICD-10 Coding for Pityriasis Rosea

Essential facts and insights about ICD-10 Coding for Pityriasis Rosea

Use ICD-10 code L42 for pityriasis rosea, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Pityriasis rosea

Billable Code
L42
Billable

Diagnostic Criteria

clinical:
  • • Presence of herald patch and typical rash distribution.
coding:
  • • Negative RPR/VDRL test to rule out syphilis.
documentation:
  • • Detailed description of rash and test results.

Applicable To

  • • Herald patch
  • • Christmas tree pattern rash

Important Notes

  • • Ensure documentation includes herald patch and rash distribution to support L42 coding.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z23

Encounter for immunization

Use if vaccination is administered during the visit.

Z00.00

Encounter for general adult medical examination without abnormal findings

Use if pityriasis rosea is found incidentally during a routine exam.

Frequently Asked Questions

What is the ICD-10 code for pityriasis rosea?

The ICD-10 code for pityriasis rosea is L42. It is used when the clinical presentation includes a herald patch and a typical rash distribution.

How is pityriasis rosea diagnosed?

Pityriasis rosea is diagnosed by identifying a herald patch and a rash in a Christmas tree pattern, with negative RPR/VDRL tests to rule out syphilis.

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