ICD-10-CM 2027 diagnosis code
A69.8Other specified spirochetal infections
A69.8 is a valid, billable ICD-10-CM code for other specified spirochetal infections. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Bronchospirochetosis, ICD-10 code for Castellani's disease.
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 A69.8
A69.8 is the ICD-10-CM diagnosis code for other specified spirochetal infections. It belongs to category A69 (other spirochetal infections), block A65-A69 (other spirochetal diseases) and chapter 1 (certain infectious and parasitic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within A69, choose A69.8 (Other specified spirochetal infections) only when documentation doesn't support a more specific option: necrotizing ulcerative stomatitis (A69.0), other Vincent's infections (A69.1), Lyme disease (A69.2) and spirochetal infection, unspecified (A69.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 104.8 (other specified spirochetal infections).
Notes that apply from higher levels
Instructions written at a parent level also apply to A69.8.
Broader instructions also apply from A65-A69 Other spirochetal diseases and Chapter 1: Certain infectious and parasitic diseases.
Alphabetic index entries
16 entriesTerms in the official ICD-10-CM index that lead to A69.8.
- 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
Codes whose notes reference A69.8
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 18 · Infectious and Parasitic Diseases, Systemic or Unspecified Sites
ICD-9-CM equivalent
Converter →- 104.8Other specified spirochetal infectionsexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
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 A69.8
Is A69.8 billable?
- Yes. A69.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A69.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A69.8 as a principal diagnosis.
Is A69.8 a CC or MCC?
- No. A69.8 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does A69.8 group to?
- A69.8 is used in the MS-DRG v44.0 logic for MS-DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC), MS-DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC) and MS-DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for A69.8?
- The CMS General Equivalence Mappings map A69.8 to ICD-9-CM 104.8.