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Home/Diagnosis/ICD-10 Coding for Allergic Rash

ICD-10 Coding for Allergic Rash

L23.9
L23.6
L27.0

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

Also Known as:
Allergic Dermatitis
Contact Dermatitis
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Key Information: ICD-10 Coding for Allergic Rash

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

Use ICD-10 code L23.9 for allergic contact dermatitis, unspecified cause, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Allergic contact dermatitis, unspecified cause

Billable Code
L23.9
Billable

Diagnostic Criteria

  • • Presence of vesicular rash with pruritus and history of allergen exposure.

Applicable To

  • • Allergic contact dermatitis NOS

Important Notes

  • • Ensure documentation supports the allergic nature of the rash.

Allergic contact dermatitis due to plants

Billable Code
L23.6
Billable

Applicable To

  • • Poison ivy dermatitis

Important Notes

  • • Document specific plant exposure and reaction details.

Generalized skin eruption due to drugs and medicaments taken internally

Billable Code
L27.0
Billable

Applicable To

  • • Drug-induced rash

Important Notes

  • • Ensure drug causality is clearly documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z77.22

Contact with and (suspected) exposure to environmental pollution and other contaminants

Use when exposure to a known allergen is documented.

T36-T50

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

Use to specify the drug causing the reaction.

Frequently Asked Questions

What is the ICD-10 code for an allergic rash?

The ICD-10 code for an unspecified allergic rash is L23.9. For specific causes like plants, use L23.6.

How do you code a drug-induced rash?

Use L27.0 for generalized skin eruptions due to drugs, with additional codes for the specific drug.

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