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  5. Zoster [herpes zoster] (B02)

Zoster [herpes zoster] (B02)

The ICD-10 code B02 and its subcodes classify various forms and complications of zoster, commonly known as herpes zoster or shingles. These codes are specifically used for documenting the viral infection of the varicella-zoster virus and its impact on skin, nervous system, and eyes.

The main code, B02, covers the general diagnosis of herpes zoster. Subcodes describe specific conditions like B02.0 (herpes zoster encephalitis) and B02.1 (herpes zoster meningitis), which involve viral infections of the brain and meninges. Other codes such as B02.21 (postherpetic geniculate ganglionitis) and B02.22 (postherpetic trigeminal neuralgia) address nerve-related pain syndromes following zoster infection. Eye complications are detailed under codes like B02.30 (herpes zoster ophthalmicus) and B02.31 (herpes zoster conjunctivitis). Disseminated infections and those with additional complications are captured under codes B02.7 and B02.8. For cases without complications, B02.9 is used. These distinctions assist healthcare providers in accurately coding and treating the different presentations of herpes zoster and its sequelae.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

  • shingles
  • zona

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Encephalitis, Varicella Zoster

Inflammation of brain tissue caused by infection with the varicella-zoster virus (HERPESVIRUS 3, HUMAN). This condition is associated with immunocompromised states, including the ACQUIRED IMMUNODEFICIENCY SYNDROME. Pathologically, the virus tends to induce a vasculopathy and infect oligodendrocytes and ependymal cells, leading to CEREBRAL INFARCTION, multifocal regions of demyelination, and periventricular necrosis. Manifestations of varicella encephalitis usually occur 5-7 days after onset of HERPES ZOSTER and include HEADACHE; VOMITING; lethargy; focal neurologic deficits; FEVER; and COMA. (From Joynt, Clinical Neurology, 1996, Ch 26, pp29-32; Hum Pathol 1996 Sep;27(9):927-38)

Facial Neuralgia

Neuralgic syndromes which feature chronic or recurrent FACIAL PAIN as the primary manifestation of disease. Disorders of the trigeminal and facial nerves are frequently associated with these conditions.

Facial Pain

Pain in the facial region including orofacial pain and craniofacial pain. Associated conditions include local inflammatory and neoplastic disorders and neuralgic syndromes involving the trigeminal, facial, and glossopharyngeal nerves. Conditions which feature recurrent or persistent facial pain as the primary manifestation of disease are referred to as FACIAL PAIN SYNDROMES.

Herpes Zoster

An acute infectious, usually self-limited, disease believed to represent activation of latent varicella-zoster virus (HERPESVIRUS 3, HUMAN) in those who have been rendered partially immune after a previous attack of CHICKENPOX. It involves the SENSORY GANGLIA and their areas of innervation and is characterized by severe neuralgic pain along the distribution of the affected nerve and crops of clustered vesicles over the area. (From Dorland, 27th ed)

Herpes Zoster Ophthalmicus

Virus infection of the Gasserian ganglion and its nerve branches characterized by pain and vesicular eruptions with much swelling. Ocular involvement is usually heralded by a vesicle on the tip of the nose. This area is innervated by the nasociliary nerve.

Herpes Zoster Oticus

A syndrome characterized by facial palsy in association with a herpetic eruption of the external auditory meatus. This may occasionally be associated with tinnitus, vertigo, deafness, severe otalgia, and inflammation of the pinna. The condition is caused by reactivation of a latent HERPESVIRUS 3, HUMAN infection which causes inflammation of the facial and vestibular nerves, and may occasionally involve additional cranial nerves. (From Adams et al., Principles of Neurology, 6th ed, p757)

Herpes Zoster Vaccine

An attenuated vaccine used to prevent and/or treat HERPES ZOSTER, a disease caused by HUMAN HERPESVIRUS 3.

Herpesvirus 3, Human

The type species of VARICELLOVIRUS causing CHICKENPOX (varicella) and HERPES ZOSTER (shingles) in humans.

Trigeminal Neuralgia

A syndrome characterized by recurrent episodes of excruciating pain lasting several seconds or longer in the sensory distribution of the TRIGEMINAL NERVE. Pain may be initiated by stimulation of trigger points on the face, lips, or gums or by movement of facial muscles or chewing. Associated conditions include MULTIPLE SCLEROSIS, vascular anomalies, ANEURYSMS, and neoplasms. (Adams et al., Principles of Neurology, 6th ed, p187)

Zoster Sine Herpete

HERPES ZOSTER but without eruption of vesicles. Patients exhibit the characteristic pain minus the skin rash, sometimes making diagnosis difficult.