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ICD-10-CM 2027 diagnosis code

B00.2Herpesviral gingivostomatitis and pharyngotonsillitis

✓ Billable / specificCC — complication/comorbidity

B00.2 is a valid, billable ICD-10-CM code for herpesviral gingivostomatitis and pharyngotonsillitis. 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 Pharyngotonsillitis.

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 B00.2

B00.2 is the ICD-10-CM diagnosis code for herpesviral gingivostomatitis and pharyngotonsillitis. It belongs to category B00 (herpesviral [herpes simplex] infections), 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 B00 (herpesviral [herpes simplex] infections), B00.2 is specifically for herpesviral gingivostomatitis and pharyngotonsillitis. Related codes cover eczema herpeticum (B00.0), herpesviral vesicular dermatitis (B00.1), herpesviral meningitis (B00.3), herpesviral encephalitis (B00.4), herpesviral ocular disease (B00.5), disseminated herpesviral disease (B00.7), other forms of herpesviral infections (B00.8) and herpesviral infection, unspecified (B00.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

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 157 (Dental and Oral Diseases with MCC, relative weight 1.809), DRG 158 (Dental and Oral Diseases with CC, relative weight 0.9366), DRG 159 (Dental and Oral Diseases without CC/MCC, relative weight 0.6893) and 5 more, in Pre-MDC, MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period) and 1 more, 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 054.2 (Herpetic gingivostomatitis).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Herpesviral pharyngitis

Notes that apply from higher levels

Instructions written at a parent level also apply to B00.2.

› From B00 Herpesviral [herpes simplex] infections
Excludes1
  • congenital herpesviral infections (P35.2)
Excludes2
  • anogenital herpesviral infection (A60.-)
  • gammaherpesviral mononucleosis (B27.0-)
  • herpangina (B08.5)

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Alphabetic index entries

8 entries

Terms in the official ICD-10-CM index that lead to B00.2.

Codes whose notes reference B00.2

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 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

ICD-9-CM equivalent

Converter →
  • 054.2Herpetic gingivostomatitisexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about B00.2

Is B00.2 billable?

Yes. B00.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can B00.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict B00.2 as a principal diagnosis.

Is B00.2 a CC or MCC?

B00.2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does B00.2 group to?

B00.2 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 157 (Dental and Oral Diseases with MCC), MS-DRG 158 (Dental and Oral Diseases with CC), MS-DRG 159 (Dental and Oral Diseases without CC/MCC) and 5 more. 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 B00.2?

The CMS General Equivalence Mappings map B00.2 to ICD-9-CM 054.2.