Coding and coverage · ICD-10-CM

B10

B10.0 Other human herpesvirus encephalitis

Not billable (header)Chapter 1

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • B10.01 Human herpesvirus 6 encephalitis
  • B10.09 Other human herpesvirus encephalitis

Instructional notes

Chapter 1

Excludes2Not included here: the patient may have both; report both when both are present.
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use additional codeAdd a second code for the full picture.
  • code to identify resistance to antimicrobial drugs (Z16.-)
Includes
  • diseases generally recognized as communicable or transmissible

B10

Excludes2Not included here: the patient may have both; report both when both are present.

This code

Excludes2Not included here: the patient may have both; report both when both are present.
  • herpes encephalitis NOS (B00.4)
  • herpes simplex encephalitis (B00.4)
  • human herpesvirus encephalitis (B00.4)
  • simian B herpes virus encephalitis (B00.4)

Chapter 1: Certain infectious and parasitic diseases · B10 Other human herpesviruses (B10)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.