B02.21
BillablePostherpetic geniculate ganglionitis
B02.21 is the ICD-10-CM code for Postherpetic geniculate ganglionitis. It is a billable, specific code valid for reimbursement.
A00-B99 Certain infectious and parasitic diseases
What this means — in plain language
MedlinePlus · NIHWhat is shingles? Shingles (herpes zoster) is an infection that causes a painful rash. It is caused by the varicella-zoster virus (VZV). This is the same virus that causes chickenpox . After you have chickenpox, the virus stays in your body. It may not cause problems for many years. But as you get older, the virus may become active again and cause shingles. Is shingles contagious? Shingles is not contagious. You…
Read more about Shingles at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Medications indicated for this condition
FDA labeling- Loteprednol Etabonate›
- AcyclovirHerpes Simplex Virus Nucleoside Analog DNA Polymerase Inhibitor [EPC]›
- Valacyclovir›
- Loteprednol Etabonate and TobramycinAminoglycoside Antibacterial [EPC]›
- FamciclovirHerpes Simplex Virus Nucleoside Analog DNA Polymerase Inhibitor [EPC]›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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