ICD-10-CM 2027
ICD-10 code for herpes
From the official ICD-10-CM alphabetic index entry “Herpes, herpesvirus, herpetic”. Page updated September 29, 2026.
About coding herpes
The ICD-10-CM code for herpes is B00.9 (Herpesviral infection, unspecified). The official index lists 95 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on B00.9.
Within B00, choose B00.9 (Herpesviral infection, unspecified) only when documentation doesn't support a more specific option: eczema herpeticum (B00.0), herpesviral vesicular dermatitis (B00.1), herpesviral gingivostomatitis and pharyngotonsillitis (B00.2), herpesviral meningitis (B00.3), herpesviral encephalitis (B00.4), herpesviral ocular disease (B00.5), disseminated herpesviral disease (B00.7) and other forms of herpesviral infections (B00.8).
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 606 (Minor Skin Disorders with MCC, relative weight 1.5728), DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), DRG 974 (HIV with Major Related Condition with MCC, relative weight 3.0506), DRG 975 (HIV with Major Related Condition with CC, relative weight 1.3252) and DRG 976 (HIV with Major Related Condition without CC/MCC, relative weight 0.8124), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) and MDC 25 (Human Immunodeficiency Virus Infections), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific herpes codes (official index)
- anogenital A60.9 — Anogenital herpesviral infection, unspecified
- perianal skin A60.1 — Herpesviral infection of perianal skin and rectum
- rectum A60.1 — Herpesviral infection of perianal skin and rectum
- urogenital tract A60.00 — Herpesviral infection of urogenital system, unspecified
- cervix A60.03 — Herpesviral cervicitis
- male genital organ NEC A60.02 — Herpesviral infection of other male genital organs
- penis A60.01 — Herpesviral infection of penis
- specified site NEC A60.09 — Herpesviral infection of other urogenital tract
- vagina A60.04 — Herpesviral vulvovaginitis
- vulva A60.04 — Herpesviral vulvovaginitis
- blepharitis (zoster) B02.39 — Other herpes zoster eye disease
- simplex B00.59 — Other herpesviral disease of eye
- circinatus B35.4 — Tinea corporis
- bullosus L12.0 — Bullous pemphigoid
- conjunctivitis (simplex) B00.53 — Herpesviral conjunctivitis
- zoster B02.31 — Zoster conjunctivitis
- cornea B02.33 — Zoster keratitis
- encephalitis B00.4 — Herpesviral encephalitis
- due to herpesvirus 6 B10.01 — Human herpesvirus 6 encephalitis
- due to herpesvirus 7 B10.09 — Other human herpesvirus encephalitis
- specified NEC B10.09 — Other human herpesvirus encephalitis
- eye (zoster) B02.30 — Zoster ocular disease, unspecified
- simplex B00.50 — Herpesviral ocular disease, unspecified
- eyelid (zoster) B02.39 — Other herpes zoster eye disease
- simplex B00.59 — Other herpesviral disease of eye
- facialis B00.1 — Herpesviral vesicular dermatitis
- febrilis B00.1 — Herpesviral vesicular dermatitis
- geniculate ganglionitis B02.21 — Postherpetic geniculate ganglionitis
- genital, genitalis A60.00 — Herpesviral infection of urogenital system, unspecified
- female A60.09 — Herpesviral infection of other urogenital tract
- male A60.02 — Herpesviral infection of other male genital organs
- gestational, gestationis O26.4 — Herpes gestationis
- gingivostomatitis B00.2 — Herpesviral gingivostomatitis and pharyngotonsillitis
- human B00.9 — Herpesviral infection, unspecified
- 1
- 2
- 3
- 4
- 5
- 6
- encephalitis B10.01 — Human herpesvirus 6 encephalitis
- specified NEC B10.81 — Human herpesvirus 6 infection
- 7
- encephalitis B10.09 — Other human herpesvirus encephalitis
- specified NEC B10.82 — Human herpesvirus 7 infection
- 8 B10.89 — Other human herpesvirus infection
- infection NEC B10.89 — Other human herpesvirus infection
- Kaposi's sarcoma associated B10.89 — Other human herpesvirus infection
- iridocyclitis (simplex) B00.51 — Herpesviral iridocyclitis
- zoster B02.32 — Zoster iridocyclitis
- iris (vesicular erythema multiforme) L51.9 — Erythema multiforme, unspecified
- iritis (simplex) B00.51 — Herpesviral iridocyclitis
- Kaposi's sarcoma associated B10.89 — Other human herpesvirus infection
- keratitis (simplex) (dendritic) (disciform) (interstitial) B00.52 — Herpesviral keratitis
- zoster (interstitial) B02.33 — Zoster keratitis
- keratoconjunctivitis (simplex) B00.52 — Herpesviral keratitis
- zoster B02.33 — Zoster keratitis
- labialis B00.1 — Herpesviral vesicular dermatitis
- lip B00.1 — Herpesviral vesicular dermatitis
- meningitis (simplex) B00.3 — Herpesviral meningitis
- zoster B02.1 — Zoster meningitis
- ophthalmicus (zoster) NEC B02.30 — Zoster ocular disease, unspecified
- simplex B00.50 — Herpesviral ocular disease, unspecified
- penis A60.01 — Herpesviral infection of penis
- perianal skin A60.1 — Herpesviral infection of perianal skin and rectum
- pharyngitis, pharyngotonsillitis B00.2 — Herpesviral gingivostomatitis and pharyngotonsillitis
- rectum A60.1 — Herpesviral infection of perianal skin and rectum
- scrotum A60.02 — Herpesviral infection of other male genital organs
- sepsis B00.7 — Disseminated herpesviral disease
- simplex B00.9 — Herpesviral infection, unspecified
- complicated NEC B00.89 — Other herpesviral infection
- congenital P35.2 — Congenital herpesviral [herpes simplex] infection
- conjunctivitis B00.53 — Herpesviral conjunctivitis
- external ear B00.1 — Herpesviral vesicular dermatitis
- eyelid B00.59 — Other herpesviral disease of eye
- hepatitis B00.81 — Herpesviral hepatitis
- keratitis (interstitial) B00.52 — Herpesviral keratitis
- myelitis B00.82 — Herpes simplex myelitis
- specified complication NEC B00.89 — Other herpesviral infection
- visceral B00.89 — Other herpesviral infection
- stomatitis B00.2 — Herpesviral gingivostomatitis and pharyngotonsillitis
- tonsurans B35.0 — Tinea barbae and tinea capitis
- visceral B00.89 — Other herpesviral infection
- vulva A60.04 — Herpesviral vulvovaginitis
- whitlow B00.89 — Other herpesviral infection
- zoster B02.9 — Zoster without complications
- auricularis B02.21 — Postherpetic geniculate ganglionitis
- complicated NEC B02.8 — Zoster with other complications
- conjunctivitis B02.31 — Zoster conjunctivitis
- disseminated B02.7 — Disseminated zoster
- encephalitis B02.0 — Zoster encephalitis
- eye (lid) B02.39 — Other herpes zoster eye disease
- geniculate ganglionitis B02.21 — Postherpetic geniculate ganglionitis
- keratitis (interstitial) B02.33 — Zoster keratitis
- meningitis B02.1 — Zoster meningitis
- myelitis B02.24 — Postherpetic myelitis
- neuritis, neuralgia B02.29 — Other postherpetic nervous system involvement
- ophthalmicus NEC B02.30 — Zoster ocular disease, unspecified
- oticus B02.21 — Postherpetic geniculate ganglionitis
- polyneuropathy B02.23 — Postherpetic polyneuropathy
- specified complication NEC B02.8 — Zoster with other complications
- trigeminal neuralgia B02.22 — Postherpetic trigeminal neuralgia
Common questions about herpes ICD-10 codes
What is the ICD-10 code for herpes?
- B00.9 — Herpesviral infection, unspecified. More specific codes apply when the documentation supports them: A60.9, A60.1, A60.1, A60.00 and others below.
What is the ICD-10 code for anogenital herpes?
- A60.9 — Anogenital herpesviral infection, unspecified.
What is the ICD-10 code for blepharitis herpes?
- B02.39 — Other herpes zoster eye disease.
What is the ICD-10 code for circinatus herpes?
- B35.4 — Tinea corporis.
What is the ICD-10 code for conjunctivitis herpes?
- B00.53 — Herpesviral conjunctivitis.
What is the ICD-10 code for cornea herpes?
- B02.33 — Zoster keratitis.
What is the ICD-10 code for encephalitis herpes?
- B00.4 — Herpesviral encephalitis.
Is B00.9 billable?
- Yes. B00.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B00.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B00.9 as a principal diagnosis.
Is B00.9 a CC or MCC?
- No. B00.9 is neither a CC nor an MCC under MS-DRG v44.0.