2020 ICD-10-CM Diagnosis Code B40.9

Blastomycosis, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • B40.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM B40.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of B40.9 - other international versions of ICD-10 B40.9 may differ.
The following code(s) above B40.9 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 B40.9:
  • A00-B99
    2020 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
    2020 ICD-10-CM Range B35-B49

    Mycoses

    Type 2 Excludes
    • hypersensitivity pneumonitis due to organic dust (J67.-)
    • mycosis fungoides (C84.0-)
    Mycoses
  • B40
    ICD-10-CM Diagnosis Code B40

    Blastomycosis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • Brazilian blastomycosis (B41.-)
    • keloidal blastomycosis (B48.0)
    Blastomycosis
Approximate Synonyms
  • Blastomycosis
Clinical Information
  • A fungal infection caused by inhalation of spores of blastomyces dermatitidis. It presents with flu-like symptoms including fever, chills, cough, pleuritic chest pain and myalgias. It may lead to a chronic granulomatous pulmonary infection and disseminate to other anatomic sites including skin, nervous system and bones.
  • A fungal infection that may appear in two forms: 1, a primary lesion characterized by the formation of a small cutaneous nodule and small nodules along the lymphatics that may heal within several months; and 2, chronic granulomatous lesions characterized by thick crusts, warty growths, and unusual vascularity and infection in the middle or upper lobes of the lung.
  • Infection caused by fungi of the genus blastomyces.
ICD-10-CM B40.9 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
  • 867 Other infectious and parasitic diseases diagnoses with mcc
  • 868 Other infectious and parasitic diseases diagnoses with cc
  • 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert B40.9 to ICD-9-CM

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
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to B40.9:

ICD-10-CM Codes Adjacent To B40.9
B39.9 Histoplasmosis, unspecified
B40 Blastomycosis
B40.0 Acute pulmonary blastomycosis
B40.1 Chronic pulmonary blastomycosis
B40.2 Pulmonary blastomycosis, unspecified
B40.3 Cutaneous blastomycosis
B40.7 Disseminated blastomycosis
B40.8 Other forms of blastomycosis
B40.81 Blastomycotic meningoencephalitis
B40.89 Other forms of blastomycosis
B40.9 Blastomycosis, unspecified
B41 Paracoccidioidomycosis
B41.0 Pulmonary paracoccidioidomycosis
B41.7 Disseminated paracoccidioidomycosis
B41.8 Other forms of paracoccidioidomycosis
B41.9 Paracoccidioidomycosis, unspecified
B42 Sporotrichosis
B42.0 Pulmonary sporotrichosis
B42.1 Lymphocutaneous sporotrichosis
B42.7 Disseminated sporotrichosis
B42.8 Other forms of sporotrichosis

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