Other spirochetal diseases
ICD-10 Codes (32)
A66A66.0A66.1A66.2A66.3A66.4A66.5A66.6A66.7A66.8A66.9A67A67.0A67.1A67.2A67.3A67.9A68A68.0A68.1A68.9A69A69.0A69.1A69.2A69.20A69.21A69.22A69.23A69.29A69.8A69.9Updates & Changes
FY 2026 Updates
New Codes (2)
Revised Codes (2)
Deleted Codes
No codes deleted in this range for FY 2026
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for A65-A69 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
The ICD-10 code range A65-A69 categorizes other spirochetal diseases, which are infections caused by spirochete bacteria. This range includes conditions such as syphilis, yaws, pinta, and Lyme disease. These codes are used to document the diagnosis of these conditions and their associated manifestations, complications, and stages.
Key Usage Points:
- •Always code to the highest level of specificity.
- •Use additional codes to identify any associated conditions.
- •Use a code from category A69 for Lyme disease and other conditions due to spirochetes.
- •Use a code from category A65 for nonvenereal syphilis.
- •Use a code from category A66 for yaws.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with a spirochetal disease.
- ✓When a patient presents with symptoms consistent with a spirochetal disease.
- ✓When a patient is being treated for a spirochetal disease.
- ✓When a patient has a history of a spirochetal disease.
When NOT to Use:
- ✗When a patient has a spirochetal infection that is not specified in the A65-A69 range.
- ✗When a patient has a condition that is due to a different type of bacteria.
- ✗When a patient has a viral or fungal infection.
- ✗When a patient has a condition that is due to a non-spirochetal bacteria.
Code Exclusions
Always verify exclusions with the official ICD-10 guidelines and the patient's medical record.
Documentation Requirements
Proper documentation for spirochetal diseases should include a clear diagnosis, the stage of the disease, any associated conditions, and the patient's history of the disease.
Clinical Information:
- •Specific diagnosis
- •Stage of the disease
- •Associated conditions
- •Patient's history of the disease
Supporting Evidence:
- •Lab results
- •Clinical notes
- •Imaging results
- •Referral letters
Good Documentation Example:
Patient diagnosed with Lyme disease, confirmed by positive ELISA and Western blot tests. Patient presents with erythema migrans and joint pain.
Poor Documentation Example:
Patient has Lyme disease.
Common Documentation Errors:
- ⚠Not documenting the stage of the disease
- ⚠Not including associated conditions
- ⚠Not providing supporting evidence
- ⚠Not specifying the type of spirochetal disease
Range Statistics
Coding Complexity
Coding spirochetal diseases can be complex due to the need to identify the specific type and stage of the disease, code any associated conditions, and understand the exclusions.
Key Factors:
- ▸Determining the specific type of spirochetal disease
- ▸Identifying the stage of the disease
- ▸Coding associated conditions
- ▸Understanding the exclusions
Specialty Focus
Spirochetal diseases are often diagnosed and treated by infectious disease specialists, dermatologists, and general practitioners.
Primary Specialties:
Clinical Scenarios:
- • A patient presents with a bullseye rash and is diagnosed with Lyme disease.
- • A patient is diagnosed with yaws based on clinical presentation and lab results.
- • A patient with a history of syphilis presents with neurologic symptoms.
- • A patient presents with a rash and is diagnosed with pinta.
Resources & References
Resources for coding spirochetal diseases include the official ICD-10 guidelines, clinical reference materials, and educational resources.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- World Health Organization ICD-10 Guidelines
Clinical References:
- Centers for Disease Control and Prevention
- Infectious Diseases Society of America
Educational Materials:
- American Health Information Management Association
- American Academy of Professional Coders
Frequently Asked Questions
How do I code for a patient with a history of Lyme disease?
Use code Z86.19, 'Personal history of other infectious and parasitic diseases', to document a history of Lyme disease.