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ICD-10 Coding for Lyme Disease(A69.20, A69.21, A69.22, A69.23)

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

Also known as:

Lyme BorreliosisTick-borne Borreliosis

Related ICD-10 Code Ranges

Complete code families applicable to Lyme Disease

A69.2Primary Range

Lyme disease

This range covers all manifestations of Lyme disease, including neurological, cardiac, and arthritic forms.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
A69.20Lyme disease, unspecifiedUse when no specific manifestation is documented.
  • Erythema migrans rash without systemic involvement
A69.21Meningitis due to Lyme diseaseUse when neurologic symptoms like headache and neck stiffness are present.
  • CSF PCR positive or intrathecal antibody production
A69.22Other neurologic disorders in Lyme diseaseUse when neurological symptoms like facial palsy are present.
  • EMG/Nerve conduction studies showing radiculopathy
A69.23Arthritis due to Lyme diseaseUse when arthritis is the dominant symptom.
  • Synovitis confirmed via imaging

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 Lyme disease

Essential facts and insights about Lyme Disease

The primary ICD-10 code for Lyme disease is A69.20, with specific codes like A69.21 for meningitis and A69.23 for arthritis.

Primary ICD-10-CM Codes for lyme

Lyme disease, unspecified
Billable Code

Decision Criteria

clinical Criteria

  • Presence of erythema migrans without systemic symptoms.

Applicable To

  • Lyme disease without specific manifestation

Excludes

  • Specific manifestations like arthritis or meningitis

Clinical Validation Requirements

  • Erythema migrans rash without systemic involvement

Code-Specific Risks

  • Risk of undercoding if specific manifestations are present but not documented.

Coding Notes

  • Avoid using if specific manifestations like arthritis or meningitis are documented.

Differential Codes

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

Erythema annulare

L53.9
Use if erythema migrans is absent but a rash is present.

Meningitis in bacterial diseases

G01
Use G01 if meningitis is due to other bacterial causes.

Bell’s palsy

G51.0
Use G51.0 for idiopathic facial palsy without Lyme confirmation.

Lyme arthritis

M01.2
Use M01.2 if Lyme arthritis is specified.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Lyme Disease to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code A69.20.

Impact

Clinical: Leads to misdiagnosis and inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials and revenue loss.

Mitigation Strategy

Ensure thorough documentation of clinical findings., Use specific codes when manifestations are documented.

Impact

Reimbursement: Non-billable code leads to claim denials., Compliance: Triggers audits due to incorrect coding., Data Quality: Impacts data accuracy and patient records.

Mitigation Strategy

Use A69.29 with chronic symptom documentation.

Impact

Using A69.2X can trigger audits.

Mitigation Strategy

Use specific codes with detailed documentation.

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 Lyme Disease, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Lyme Disease

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

Lyme disease with neurological symptoms

Specialty: Neurology

Required Elements

  • Patient history
  • Neurological examination
  • CSF analysis
  • Lyme serology results

Example Documentation

42yo male with bilateral facial palsy, CSF lymphocytic pleocytosis, positive B. burgdorferi IgM ELISA.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Fatigue, joint pain. Lyme suspected.
Good Documentation Example
42yo male with 10cm erythema migrans on scapula x5 days, camping in Wisconsin 3 weeks PTA. IgG Western blot positive (6/10 bands).
Explanation
The good example provides specific findings and exposure history, supporting the diagnosis.

Need help with ICD-10 coding for Lyme Disease? Ask your questions below.

Ask about any ICD-10 CM code, or paste a medical note

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