DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

B00 Herpesviral [herpes simplex] infections

  • Header · not billable

B00 is not billable. The category heads 15 billable codes in FY2027, grouped under 9 subdivisions.

Index → code

  • Coldsore → B00.1
  • Herpes, herpesvirus, herpetic → B00.9
  • Pharyngotonsillitis, herpesviral → B00.2

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. B00-B09 Viral infections characterized by skin and mucous membrane lesions (B00-B09)
  3. B00 Herpesviral [herpes simplex] infections
Billable codes
15
Subdivisions
9
CC / MCC codes
8 / 4
HCC V28 codes
2
New FY2027
0
Index entries
76

Codes in B00

  1. B00.0
    Eczema herpeticum
    Billable
    Inclusion terms 1

    Inclusion terms

    • Kaposi's varicelliform eruption
  2. B00.1
    Herpesviral vesicular dermatitis
    Billable
    Inclusion terms 5

    Inclusion terms

    • Herpes simplex facialis
    • Herpes simplex labialis
    • Herpes simplex otitis externa
    • Vesicular dermatitis of ear
    • Vesicular dermatitis of lip
  3. B00.2
    Herpesviral gingivostomatitis and pharyngotonsillitis
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Herpesviral pharyngitis
  4. B00.3
    Herpesviral meningitis
    BillableMCC
  5. B00.4
    Herpesviral encephalitis
    BillableMCC
    Inclusion terms 2, Excludes1 2

    Inclusion terms

    • Herpesviral meningoencephalitis
    • Simian B disease

    Excludes1

    • herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09) B10.01 B10.09
    • non-simplex herpesviral encephalitis (B10.0-) B10.0
  6. B00.5
    Herpesviral ocular disease
    Header
  7. B00.50
    Herpesviral ocular disease, unspecified
    BillableCC
  8. B00.51
    Herpesviral iridocyclitis
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Herpesviral iritis
    • Herpesviral uveitis, anterior
  9. B00.52
    Herpesviral keratitis
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Herpesviral keratoconjunctivitis
  10. B00.53
    Herpesviral conjunctivitis
    BillableCC
  11. B00.59
    Other herpesviral disease of eye
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Herpesviral dermatitis of eyelid
  12. B00.7
    Disseminated herpesviral disease
    BillableMCC2
    Inclusion terms 1

    Inclusion terms

    • Herpesviral sepsis
  13. B00.8
    Other forms of herpesviral infections
    Header
  14. B00.81
    Herpesviral hepatitis
    BillableCC
  15. B00.82
    Herpes simplex myelitis
    BillableMCC182
  16. B00.89
    Other herpesviral infection
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Herpesviral whitlow
  17. B00.9
    Herpesviral infection, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Herpes simplex infection NOS

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At B00

Excludes1

  • congenital herpesviral infections (P35.2) P35.2

Excludes2

  • anogenital herpesviral infection (A60.-) A60
  • gammaherpesviral mononucleosis (B27.0-) B27.0
  • herpangina (B08.5) B08.5

Notes that also apply

Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.

Index entries

  • Coldsore → B00.1
  • Pharyngotonsillitis, herpesviral → B00.2
  • Herpes, herpesvirus, herpetic → B00.9
  • Eczema (acute) (chronic) (erythematous) (fissum) (rubrum) (squamous)herpeticum → B00.0
  • EruptionKaposi's varicelliform → B00.0
  • Kaposi'svaricelliform eruption → B00.0
  • Blister (nonthermal)fever → B00.1
  • Dermatitis (eczematous)herpesviral, vesicular (ear) (lip) → B00.1
  • Dermatitis (eczematous)vesicular, herpesviral → B00.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)blister → B00.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)sore → B00.1
  • Herpes, herpesvirus, herpeticfacialis → B00.1
  • Herpes, herpesvirus, herpeticfebrilis → B00.1
  • Herpes, herpesvirus, herpeticlabialis → B00.1
  • Herpes, herpesvirus, herpeticlip → B00.1
  • Gingivostomatitisherpesviral → B00.2
  • Herpes, herpesvirus, herpeticgingivostomatitis → B00.2
  • Herpes, herpesvirus, herpeticpharyngitis, pharyngotonsillitis → B00.2
  • Herpes, herpesvirus, herpeticstomatitis → B00.2
  • Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)herpesviral → B00.2
  • Stomatitis (denture) (ulcerative)herpesviral, herpetic → B00.2
  • Herpes, herpesvirus, herpeticmeningitis (simplex) → B00.3
  • Disease, diseasedsimian B → B00.4
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)herpesviral → B00.4
  • Herpes, herpesvirus, herpeticencephalitis → B00.4
  • Meningoencephalitisherpesviral, herpetic → B00.4
  • Herpes, herpesvirus, herpeticiridocyclitis (simplex) → B00.51
  • Herpes, herpesvirus, herpeticiritis (simplex) → B00.51
  • Iridocyclitisherpes, herpetic (simplex) → B00.51
  • Herpes, herpesvirus, herpetickeratitis (simplex) (dendritic) (disciform) (interstitial) → B00.52
  • Herpes, herpesvirus, herpetickeratoconjunctivitis (simplex) → B00.52
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)arborescens (herpes simplex) → B00.52
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)dendritic(a) (herpes simplex) → B00.52
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)disciform (is) (herpes simplex) → B00.52
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)herpes, herpetic (simplex) → B00.52
  • Keratoconjunctivitisherpes, herpetic (simplex) → B00.52
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativedendritic, cornea (herpes simplex) → B00.52
  • Herpes, herpesvirus, herpeticconjunctivitis (simplex) → B00.53
  • Disease, diseasedherpesviral, disseminated → B00.7
  • Herpes, herpesvirus, herpeticsepsis → B00.7

36 more, longer entries are not listed; the search box finds them by word.

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