B94
Sequelae of other and unspecified infectious and parasitic diseases
B94 is a non-billable ICD-10-CM code category for sequelae of other and unspecified infectious and parasitic diseases. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are B94.0 Sequelae of trachoma, B94.1 Sequelae of viral encephalitis, B94.2 Sequelae of viral hepatitis, B94.8 Sequelae of other specified infectious and parasitic diseases and 1 more. Its coding notes include a Code first instruction, a Use additional code instruction and 5 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
Also from chapter/block level (1 note)
- condition resulting from (sequela) the infectious or parasitic disease
Use additional code
Add the listed code as a secondary code, if known.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (5 notes)
- 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)
Includes
Further defines or gives examples of the content of the category.
Also from chapter/block level (1 note)
- diseases generally recognized as communicable or transmissible
Notes
Also from chapter/block level (1 note)
- Categories B90-B94 are to be used to indicate conditions in categories A00-B89 as the cause of sequelae, which are themselves classified elsewhere. The 'sequelae' include conditions specified as such; they also include residuals of diseases classifiable to the above categories if there is evidence that the disease itself is no longer present. Codes from these categories are not to be used for chronic infections. Code chronic current infections to active infectious disease as appropriate.