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.
Code history
Latest recorded change · FY2027
ChangedUnchanged
FY2027Selected edition
Effective from
Inherited rules changed
Unspecified parasitic disease
Billable diagnosis code
CDC/NCHS · FY2027
All editions (19)
All editions
Effective from
Code history
FY2016
2015-10-01
First observed
FY2017
2016-10-01
No tabular change
FY2018
2017-10-01
No tabular change
FY2019
2018-10-01
No tabular change
FY2020
2019-10-01
No tabular change
FY2020 · April
2020-04-01
No tabular change
FY2021
2020-10-01
No tabular change
FY2021 · 01-01
2021-01-01
No tabular change
FY2022
2021-10-01
No tabular change
FY2022 · 04-01
2022-04-01
No tabular change
FY2023
2022-10-01
No tabular change
FY2023 · 04-01
2023-04-01
No tabular change
FY2024
2023-10-01
No tabular change
FY2024 · 04-01
2024-04-01
No tabular change
FY2025
2024-10-01
No tabular change
FY2025 · 04-01
2025-04-01
No tabular change
FY2026
2025-10-01
No tabular change
FY2026 · April
2026-04-01
No tabular change
FY2027
2026-10-01
Inherited rules changed
Historical ICD-9 mappings · 2018
Historical mapping only; not an automatic code substitution.