ICD-10-CM 2027 diagnosis code
B08.5Enteroviral vesicular pharyngitis
B08.5 is a valid, billable ICD-10-CM code for enteroviral vesicular pharyngitis. 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 Herpangina.
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 B08.5
B08.5 is the ICD-10-CM diagnosis code for enteroviral vesicular pharyngitis. 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 (other viral infections characterized by skin and mucous membrane lesions, not elsewhere classified), B08.5 is specifically for enteroviral vesicular pharyngitis. Related codes cover 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), parapoxvirus infections (B08.6), yatapoxvirus infections (B08.7) and other specified viral infections characterized by skin and mucous membrane lesions (B08.8).
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 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 152 (Otitis Media and URI with MCC, relative weight 1.1151) and DRG 153 (Otitis Media and URI without MCC, relative weight 0.7421), in Pre-MDC and MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), 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 074.0 (Herpangina).
Coding notes
- Herpangina
Notes that apply from higher levels
Instructions written at a parent level also apply to B08.5.
› 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
12 entriesTerms in the official ICD-10-CM index that lead to B08.5.
- Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) › aphthous
- Coxsackie (virus) (infection) › pharyngitis
- Herpangina
- Infection, infected, infective (opportunistic) › pharynx › coxsackievirus
- Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative) › aphthous
- Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative) › coxsackievirus
- Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative) › enteroviral vesicular
- Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative) › vesicular, enteroviral
- Sore › throat (acute) › coxsackie (virus)
- Sore › throat (acute) › viral NEC › coxsackie
- Syndrome › Zahorsky's
- Zahorsky's syndrome (herpangina)
Codes whose notes reference B08.5
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 PRE · Pre-MDC
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat
ICD-9-CM equivalent
Converter →- 074.0Herpanginaexact
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 B08.5
Is B08.5 billable?
- Yes. B08.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B08.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B08.5 as a principal diagnosis.
Is B08.5 a CC or MCC?
- No. B08.5 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does B08.5 group to?
- B08.5 is used in the MS-DRG v44.0 logic for MS-DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC), MS-DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC), MS-DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC), MS-DRG 152 (Otitis Media and URI with MCC) and MS-DRG 153 (Otitis Media and URI 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 B08.5?
- The CMS General Equivalence Mappings map B08.5 to ICD-9-CM 074.0.