Lyme Disease ICD-10-CM Codes

Lyme Disease ICD-10-CM Codes

Dive into the comprehensive guide on Lyme Disease ICD-10-CM codes. Understand the commonly used codes, their clinical descriptions, and billing details.

By Nate Lacson on Aug 8, 2025.

Fact Checked by Ericka Pingol.

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What ICD-10 codes are used for Lyme disease?

Lyme disease, a tick-borne illness, has specific ICD-10 codes for accurate diagnosis and treatment. Here are some of the commonly used Lyme Disease diagnosis codes under Chapter I: Infectious and Parasitic Diseases, specifically, A65- A69: Other spirochetal diseases:

  • A69.20: Lyme disease, unspecified
  • A69.21: Meningitis due to Lyme disease
  • A69.22: Other neurologic disorders in Lyme disease
  • A69.23: Arthritis due to Lyme disease
  • A69.29: Other conditions associated with Lyme disease

Which Lyme disease ICD codes are billable?

Understanding which Lyme Disease ICD codes are billable is crucial for healthcare providers. Here's a breakdown:

  • A69.20 - Yes. This code represents a general diagnosis of Lyme disease.
  • A69.21 - Yes. Meningitis due to Lyme disease requires specialized treatment.
  • A69.22 - Yes. Neurological disorders linked to Lyme disease can be complex.
  • A69.23 - Yes. Arthritis caused by Lyme disease may need extended care.
  • A69.29 - Yes. Other conditions related to Lyme disease can vary in severity.

Clinical information

Lyme Disease is an infectious disease caused by the bacterium Borrelia burgdorferi and is transmitted to humans through the  infected tick bites, specifically from black-legged ticks. Here's what you need to know:

  • Initial symptoms may include fever, fatigue, headache, muscle and joint aches, and swollen lymph nodes.
  • The infection can spread to the joints, heart, and central nervous system if untreated.
  • Most cases of Lyme disease can be treated successfully with a few weeks of oral antibiotics.
  • Lyme disease is diagnosed based on symptoms, physical findings, and possible exposure to infected ticks.
  • Laboratory testing is helpful if used correctly and performed with validated methods.

Synonyms include

  • Borrelia infection
  • Tick-borne borreliosis
  • Lyme borreliosis
  • Lyme arthritis
  • Lyme neuroborreliosis

Commonly asked questions

Lyme Disease is primarily caused by the bacterium Borrelia burgdorferi and is transmitted to humans through the bite of infected black-legged ticks.

Yes, most cases of Lyme disease can be treated successfully with a few weeks of antibiotics.

No, Lyme Disease is not spread from person to person. It is transmitted through the bite of an infected tick.

Related ICDs

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