How to code Lyme disease with neurological symptoms?

Use A69.22 for neurological symptoms like facial palsy, ensuring documentation of positive Lyme serology and specific neurological findings.

What is the ICD-10 code for Lyme arthritis?

The ICD-10 code for Lyme arthritis is A69.23, used when arthritis is the dominant symptom with positive Lyme serology.

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

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Explore detailed ICD-10 coding guidelines for Lyme disease, including specific codes for neurological and arthritic manifestations, documentation requirements, and common pitfalls.

Also known as:

Lyme BorreliosisTick-borne Borreliosis

Related ICD-10 Code Ranges

Complete code families applicable to Lyme Disease

A00-B99Primary Range

Certain infectious and parasitic diseases

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

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

Primary ICD-10-CM Codes

Lyme disease, unspecified

A69.20Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Erythema annulareL53.9

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

Meningitis in bacterial diseasesG01

Bell’s palsyG51.0

Documentation & Coding Risks

Avoid these common issues when documenting Lyme Disease.

Using unspecified codes when specific manifestations are present.

Impact

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

Mitigation

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

Using A69.2 (chronic Lyme) which is non-billable.

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

Use A69.29 with chronic symptom documentation.

Use of non-billable codes

Impact

Using A69.2 can trigger audits.

Mitigation

Use specific codes with detailed documentation.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with A69.20.

Erythema Migrans→

Primary Code

A69.20

Lyme disease, unspecified

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ICD-10 codes8

Coding risks3

FAQs2

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

Documentation & Coding Risks

Frequently Asked Questions

How to code Lyme disease with neurological symptoms?

What is the ICD-10 code for Lyme arthritis?

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