ICD-10-CM 2027 diagnosis code
B08.8Other specified viral infections characterized by skin and mucous membrane lesions
B08.8 is a valid, billable ICD-10-CM code for other specified viral infections characterized by skin and mucous membrane lesions. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Oth viral infections with skin and mucous membrane lesions
Looking up by condition? See ICD-10 code for Cotia virus, ICD-10 code for Poxvirus NEC.
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 B08.8
B08.8 is the ICD-10-CM diagnosis code for other specified viral infections characterized by skin and mucous membrane lesions. It belongs to category B08 (other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified), block B00-B09 (viral infections characterized by skin and mucous membrane lesions) 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 B08, choose B08.8 (Other specified viral infections characterized by skin and mucous membrane lesions) only when documentation doesn't support a more specific option: other orthopoxvirus infections (B08.0), Molluscum contagiosum (B08.1), exanthema subitum [sixth disease] (B08.2), erythema infectiosum [fifth disease] (B08.3), enteroviral vesicular stomatitis with exanthem (B08.4), enteroviral vesicular pharyngitis (B08.5), parapoxvirus infections (B08.6) and yatapoxvirus infections (B08.7).
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 865 (Viral Illness with MCC, relative weight 1.3485) and DRG 866 (Viral Illness without MCC, relative weight 0.8692), 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 059.8 (other poxvirus infections) and 078.4 (foot and mouth disease).
Coding notes
- Enteroviral lymphonodular pharyngitis
- Foot-and-mouth disease
- Poxvirus NEC
Notes that apply from higher levels
Instructions written at a parent level also apply to B08.8.
› From B08 Other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified
- vesicular stomatitis virus disease (A93.8)
Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.
Alphabetic index entries
13 entriesTerms in the official ICD-10-CM index that lead to B08.8.
- Aphthae, aphthous › epizootic
- Aphthae, aphthous › fever
- Cotia virus
- Disease, diseased › foot and mouth
- Disease, diseased › fourth
- Exanthem, exanthema › viral, virus › specified type NEC
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › aphthous
- Infection, infected, infective (opportunistic) › cotia virus
- Infection, infected, infective (opportunistic) › virus, viral NOS › cotia
- Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative) › lymphonodular, acute (enteroviral)
- Poxvirus NEC
- Stomatitis (denture) (ulcerative) › epidemic
- Stomatitis (denture) (ulcerative) › epizootic
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 →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 B08.8
Is B08.8 billable?
- Yes. B08.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B08.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B08.8 as a principal diagnosis.
Is B08.8 a CC or MCC?
- No. B08.8 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does B08.8 group to?
- B08.8 is used in the MS-DRG v44.0 logic for MS-DRG 865 (Viral Illness with MCC) and MS-DRG 866 (Viral Illness without 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 B08.8?
- The CMS General Equivalence Mappings map B08.8 to ICD-9-CM 059.8 and 078.4.