B02.21

Postherpetic geniculate ganglionitis

Billable / specific

B02.21 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from B02)

  • diseases generally recognized as communicable or transmissible
  • shingles
  • zona

Excludes2

Not included here — may be reported together when both conditions exist.

  • carrier or suspected carrier of infectious disease (Z22.-) (from B02)
  • certain localized infections - see body system-related chapters (from B02)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) (from B02)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39) (from B02)
  • influenza and other acute respiratory infections (J00-J22) (from B02)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify resistance to antimicrobial drugs (Z16.-) (from B02)

Also known as

  • Disease, diseased, Hunt's
  • Ganglionitis, gasserian
  • Ganglionitis, geniculate, postherpetic, postzoster
  • Ganglionitis, herpes zoster
  • Ganglionitis, postherpetic geniculate
  • Herpes, herpesvirus, herpetic, geniculate ganglionitis
  • Herpes, herpesvirus, herpetic, zoster, auricularis
  • Herpes, herpesvirus, herpetic, zoster, geniculate ganglionitis
  • Herpes, herpesvirus, herpetic, zoster, oticus
  • Hunt's, disease or syndrome
  • Hunt's, neuralgia
  • Neuralgia, neuralgic, Hunt's
  • Neuritis, geniculate ganglion, due to herpes
  • Ramsay-Hunt disease or syndrome
  • Syndrome, Hunt's

Parent code

  • B02.2Zoster with other nervous system involvementHeader

Related codes

  • B02.22Postherpetic trigeminal neuralgiaBillable
  • B02.23Postherpetic polyneuropathyBillable
  • B02.24Postherpetic myelitisBillable
  • B02.29Other postherpetic nervous system involvementBillable

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