ICD-10-CM 2027 diagnosis code

A69.2Lyme disease

Not billable — use a more specific code

A69.2 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A69.2

A69.2 is the ICD-10-CM diagnosis code for Lyme disease. It belongs to category A69 (other spirochetal infections), block A65-A69 (other spirochetal diseases) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within A69 (other spirochetal infections), A69.2 is specifically for Lyme disease. Related codes cover necrotizing ulcerative stomatitis (A69.0), other Vincent's infections (A69.1), other specified spirochetal infections (A69.8) and spirochetal infection, unspecified (A69.9).

To report this condition, pick the subcode that matches the documentation: A69.20 (unspecified), A69.21 (disease), A69.22 (disease), A69.23 (disease) and A69.29 (disease).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A69.2

Coding notes

Applicable toConditions and synonyms classified to this code

Erythema chronicum migrans due to Borrelia burgdorferi

Notes that apply from higher levels

Instructions written at a parent level also apply to A69.2.

Broader instructions also apply from A65-A69 Other spirochetal diseases and Chapter 1: Certain infectious and parasitic diseases.

Codes whose notes reference A69.2

A68Excludes2

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about A69.2

Is A69.2 billable?: No. A69.2 is a header code. Report one of its more specific subcodes instead.