ICD-10-CM Code A69.21
Meningitis due to Lyme disease
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.A69.21 is a billable ICD code used to specify a diagnosis of meningitis due to Lyme disease. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code A692 is used to code Erythema chronicum migrans
Erythema chronicum migrans (New Latin, literally, "chronic migrating redness") refers to the rash often (though not always) seen in the early stage of Lyme disease. It can appear anywhere from one day to one month after a tick bite. This rash does not represent an allergic reaction to the bite, but rather an actual skin infection with the Lyme bacteria, Borrelia burgdorferi sensu lato. "Erythema migrans is the only manifestation of Lyme disease in the United States that is sufficiently distinctive to allow clinical diagnosis in the absence of laboratory confirmation.". It is a pathognomonic sign: a physician-identified rash warrants an instant diagnosis of Lyme disease and immediate treatment without further testing, even by the strict criteria of the Centers for Disease Control and Prevention. Such target lesions (bull's-eye rashes) are characteristic of Borrelia infections, and no other pathogens are known that cause this form of rash.
| Specialty: | Infectious Disease |
| MeSH Codes: | D015787, D015787 |
| ICD 9 Codes: | 888.1, 529.1 |
An erythema migrans rash.
MS-DRG Mapping
- DRG Group #867-869 - Other infectious and parasitic diseases diagnoses with MCC.
- DRG Group #867-869 - Other infectious and parasitic diseases diagnoses with CC.
- DRG Group #867-869 - Other infectious and parasitic diseases diagnoses without CC or MCC.
Related Concepts SNOMET-CT
- Meningitis in Lyme disease (disorder)
ICD-10-CM Alphabetical Index References for 'A69.21 - Meningitis due to Lyme disease'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code A69.21. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code A69.21 and a single ICD9 code, 088.81 is an approximate match for comparison and conversion purposes.
Parent Code: A69.2 - Lyme disease