- B45.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM B45.1 became effective on October 1, 2022.
- This is the American ICD-10-CM version of B45.1 – other international versions of ICD-10 B45.1 may differ.
ICD-10-CM B45.1 is grouped within Diagnostic Related Group(s):
- 023 Craniotomy with major device implant or acute complex cns principal diagnosis with mcc or chemotherapy implant or epilepsy with neurostimulator
- 024 Craniotomy with major device implant or acute complex cns principal diagnosis without mcc
- 097 Non-bacterial infection of nervous system except viral meningitis with mcc
- 098 Non-bacterial infection of nervous system except viral meningitis with cc
- 099 Non-bacterial infection of nervous system except viral meningitis without cc/mcc
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Applicable To
- Cryptococcal meningitis
- Cryptococcosis meningocerebralis
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to B45.1:
- cerebral > Cryptococcosis, cryptococcus (infection) (neoformans) B45.9
- meningitis > Cryptococcosis, cryptococcus (infection) (neoformans) B45.9
- meningocerebralis > Cryptococcosis, cryptococcus (infection) (neoformans) B45.9
- Torula, torular (cryptococcal) > Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
- cryptococcal > Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) G03.9
- Torula histolytica (cryptococcal) > Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) G03.9
- Torula > due to A42.82
- cryptococcal > Meningomyelitis