2026 ICD-10-CM Diagnosis Code A69.8Other specified spirochetal infections

ICD-10-CM Codes›A00–B99›A65-A69›A69

ICD-10-CM A69.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A69.8 is a billable ICD-10-CM diagnosis code for other specified spirochetal infections. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 867 through 869. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.

Code Identity

ICD-10-CM Code
A69.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified spirochetal infections
Short Description
Other specified spirochetal infections
Same as the full description in the CMS dataset.
Parent Code
A69
Other spirochetal infections

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA65-A69Other spirochetal diseases
CategoryA69Other spirochetal infections
This CodeA69.8Other specified spirochetal infections

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Borrelia infection of central nervous system
  • Borreliosis
  • Infection by Borrelia crocidurae
  • Infection by Borrelia microti
  • Infection by Borrelia turicatae
  • Infection caused by Borrelia caucasica
  • Infection caused by Borrelia duttonii
  • Infection caused by Borrelia hermsii
  • Infection caused by Borrelia hispanica
  • Infection caused by Borrelia latyschewii
  • Infection caused by Borrelia mazzottii
  • Infection caused by Borrelia miyamotoi
  • Infection caused by Borrelia parkeri
  • Infection caused by Borrelia persica
  • Infection caused by Borrelia venezuelensis
  • Infection of skin caused by Borrelia
  • Late cutaneous Lyme borreliosis
  • Myocarditis caused by Borrelia
  • Myocarditis caused by Spirochaetales
  • Tropical phagedenic ulcer
  • Ulcer caused by Treponema vincentii

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Bronchitis(diffuse) (fibrinous) (hypostatic) (infective) (membranous)
      • Castellani's
    • Bronchitis(diffuse) (fibrinous) (hypostatic) (infective) (membranous)
      • spirochetal NEC
    • Bronchospirochetosis
    • Bronchospirochetosis
      • Castellani
    • Castellani's disease
    • Disease, diseased
      • Castellani's
    • Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)
      • lung
        • spirochetal
    • Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)
      • spirochetal NEC
    • Infection, infected, infective(opportunistic)
      • lung
        • spirochetal
    • Infection, infected, infective(opportunistic)
      • spirochetal NOS
        • lung
    • Infection, infected, infective(opportunistic)
      • spirochetal NOS
        • specified NEC
    • Pneumonia(acute) (double) (migratory) (purulent) (septic) (unresolved)
      • in (due to)
        • spirochetal NEC
    • Pneumonia(acute) (double) (migratory) (purulent) (septic) (unresolved)
      • spirochetal NEC
    • Spirochetosis
      • bronchopulmonary
    • Spirochetosis
      • lung
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • nose, nasal (passage) (infective) (septum)
        • spirochetal

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF009
Parasitic, other specified and unspecified infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

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Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert A69.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
104.8 Spirochetal infect NEC
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A69.8Overview

Is A69.8 (Other spirochetal infections) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified spirochetal infections on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does A69.8 group to?

When other specified spirochetal infections is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A69.8?

Under the General Equivalence Mappings, other specified spirochetal infections converts to ICD-9-CM 104.8 (spirochetal infect NEC). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.