2019 ICD-10-CM Diagnosis Code B45

Cryptococcosis

    2016 2017 2018 2019 Non-Billable/Non-Specific Code
  • B45 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2019 edition of ICD-10-CM B45 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of B45 - other international versions of ICD-10 B45 may differ.
The following code(s) above B45 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B45:
  • A00-B99
    2019 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • 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
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • B35-B49
    2019 ICD-10-CM Range B35-B49

    Mycoses

    Type 2 Excludes
    • hypersensitivity pneumonitis due to organic dust (J67.-)
    • mycosis fungoides (C84.0-)
    Mycoses
Clinical Information
  • An acute or chronic, localized or disseminated infection by cryptococcus neoformans. Sites of involvement include the lungs, central nervous system and meninges, skin, and visceral organs.
  • Infection with a fungus of the species cryptococcus neoformans.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
ICD-10-CM Codes Adjacent To B45
B43.9 Chromomycosis, unspecified
B44 Aspergillosis
B44.0 Invasive pulmonary aspergillosis
B44.1 Other pulmonary aspergillosis
B44.2 Tonsillar aspergillosis
B44.7 Disseminated aspergillosis
B44.8 Other forms of aspergillosis
B44.81 Allergic bronchopulmonary aspergillosis
B44.89 Other forms of aspergillosis
B44.9 Aspergillosis, unspecified
B45 Cryptococcosis
B45.0 Pulmonary cryptococcosis
B45.1 Cerebral cryptococcosis
B45.2 Cutaneous cryptococcosis
B45.3 Osseous cryptococcosis
B45.7 Disseminated cryptococcosis
B45.8 Other forms of cryptococcosis
B45.9 Cryptococcosis, unspecified
B46 Zygomycosis
B46.0 Pulmonary mucormycosis
B46.1 Rhinocerebral mucormycosis

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.