2024 ICD-10-CM Diagnosis Code B49

by

Unspecified mycosis

  • B49 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 B49 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B49 – other international versions of ICD-10 B49 may differ.

Applicable To

  • Fungemia NOS

The following code(s) above B49 contain annotation back-references

 that may be applicable to B49:

  • A00-B99  Certain infectious and parasitic diseases
  • B35-B49  Mycoses

Approximate Synonyms

  • Allergic bronchopulmonary mycosis
  • Arthropathy associated with a mycosis
  • Arthropathy associated with mycosis
  • Arthropathy with mycosis
  • Bilateral fungal keratitis
  • Fungal endocarditis
  • Fungal keratitis
  • Fungal meningitis
  • Fungal pneumonia
  • Fungal sinusitis
  • Invasive fungal sinusitis
  • Left fungal keratitis
  • Meningitis, fungal
  • Mycosis
  • Mycotic aneurysm
  • Mycotic endocarditis
  • Pneumonia due to fungus
  • Right fungal keratitis

Clinical Information

  • An infection caused by a fungus.
  • An infection caused by eukaryotic heterotrophic organisms that live as saprobes or parasites, including mushrooms, yeasts, smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi refer to those that grow as multicellular colonies (mushrooms and molds).
  • Disease caused by a fungus.
  • If you’ve ever had athlete’s foot or a yeast infection, you can blame a fungus. Fungi are primitive plants, with mushrooms, mold, and mildew being common examples. They inhabit the air, soil, plants, and water, and some even live in the human body. While only about half of all fungi are harmful, they can reproduce through tiny spores that float in the air. These spores can be inhaled or land on your skin, leading to infections that often begin in the lungs or on the skin. People with weakened immune systems or those taking antibiotics are more susceptible to fungal infections. Fungi can be challenging to eliminate, but for skin and nail infections, topical medications can be applied directly to the affected area. For more severe infections, oral antifungal medications are available.
  • The presence of fungi circulating in the blood. Opportunistic fungal sepsis is seen most often in immunosuppressed patients with severe neutropenia or in postoperative patients with intravenous catheters and usually follows prolonged antibiotic therapy.

ICD-10-CM B49 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 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 B49 to ICD-9-CMCode 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to B49: