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ICD-10 Coding for Lichen Sclerosus(L90.0, N90.4, N48.0)

Complete ICD-10-CM coding and documentation guide for Lichen Sclerosus. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Lichen Sclerosus et AtrophicusLSA

Related ICD-10 Code Ranges

Complete code families applicable to Lichen Sclerosus

L90-L99Primary Range

Other disorders of skin and subcutaneous tissue

Includes non-genital lichen sclerosus under L90.0.

Noninflammatory disorders of female genital tract

Includes genital lichen sclerosus for females under N90.4.

Diseases of male genital organs

Includes genital lichen sclerosus for males under N48.0.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
L90.0Lichen sclerosus et atrophicusUse for non-genital lichen sclerosus.
  • White atrophic plaques on trunk or limbs
  • Biopsy confirmation showing epidermal atrophy and homogenized collagen
N90.4Vulvar lichen sclerosusUse for female genital lichen sclerosus.
  • Porcelain-white vulvar lesions
  • Biopsy confirmation required
N48.0Penile lichen sclerosusUse for male genital lichen sclerosus.
  • Phimosis, glans whitening
  • Biopsy confirmation required

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for lichen sclerosus

Essential facts and insights about Lichen Sclerosus

The ICD-10 code for non-genital lichen sclerosus is L90.0. For genital cases, use N90.4 for females and N48.0 for males.

Primary ICD-10-CM Codes for lichen sclerosus

Lichen sclerosus et atrophicus
Billable Code

Decision Criteria

clinical Criteria

  • Presence of white atrophic plaques on non-genital skin

Applicable To

  • Non-genital lichen sclerosus

Excludes

Clinical Validation Requirements

  • White atrophic plaques on trunk or limbs
  • Biopsy confirmation showing epidermal atrophy and homogenized collagen

Code-Specific Risks

  • Incorrectly coding genital cases as L90.0

Coding Notes

  • Ensure site specificity is documented to avoid misclassification.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Lichen planus, unspecified

L43.9
Presence of Wickham striae and absence of dermal sclerosis.

Carcinoma in situ of vulva

D07.3
Presence of irregular ulcers and p53 overexpression on IHC.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Lichen Sclerosus to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code L90.0.

Impact

Clinical: Misdiagnosis and inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims and audits.

Mitigation Strategy

Always document the specific site of lesions., Use biopsy results to confirm diagnosis.

Impact

Reimbursement: Incorrect DRG assignment leading to reimbursement issues., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient records.

Mitigation Strategy

Verify site and use N90.4 or N48.0 for genital cases.

Impact

High risk of audits if genital and non-genital sites are not clearly documented.

Mitigation Strategy

Ensure detailed documentation of lesion sites and biopsy results.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Lichen Sclerosus, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Lichen Sclerosus

Use these documentation templates to ensure complete and accurate documentation for Lichen Sclerosus. These templates include all required elements for proper coding and billing.

Female patient with vulvar lichen sclerosus

Specialty: Gynecology

Required Elements

  • Location and description of lesions
  • Biopsy results
  • Treatment plan

Example Documentation

Patient presents with porcelain-white plaques on vulva. Biopsy confirms lichen sclerosus. Prescribed clobetasol 0.05% cream.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Vulvar itching, treat with steroids.
Good Documentation Example
Porcelain-white plaques with erosions on labia minora; biopsy shows epidermal atrophy + homogenized collagen.
Explanation
The good example provides specific clinical findings and biopsy results, supporting accurate coding.

Need help with ICD-10 coding for Lichen Sclerosus? Ask your questions below.

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