2024 ICD-10-CM Diagnosis Code B55.9

by

Leishmaniasis, unspecified

  • B55.9 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 B55.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B55.9 – other international versions of ICD-10 B55.9 may differ.

The following code(s) above B55.9 contain annotation back-references

 that may be applicable to B55.9:

  • A00-B99  Certain infectious and parasitic diseases
  • B50-B64  Protozoal diseases

Approximate Synonyms

  • Leishmaniasis
  • Leishmaniasis infection

Clinical Information

  • A disease caused by any of a number of species of protozoa in the genus leishmania. There are four major clinical types of this infection: cutaneous (old and new world) (leishmaniasis, cutaneous), diffuse cutaneous (leishmaniasis, diffuse cutaneous), mucocutaneous (leishmaniasis, mucocutaneous), and visceral (leishmaniasis, visceral).
  • A parasitic infection caused by protozoa of the genus leishmania. It is transmitted to humans via the bite of sandflies. There are three main forms of the disease: cutaneous, mucocutaneous, and visceral leishmaniasis. Cutaneous leishmaniasis causes skin ulcers; mucocutaneous leishmaniasis causes destructive lesions of the mucous membranes of the nose, mouth, and throat; visceral leishmaniasis is the most severe form of the disease and is manifested with anemia, weight loss, hepatomegaly and splenomegaly.
  • Disease caused by any of a number of species of protozoa in the genus leishmania; there are four major clinical types of this infection: cutaneous (old and new world), diffuse cutaneous, mucocutaneous, and visceral; visceral is characterized by fever, chills, vomiting, anemia, hepatosplenomegaly, leukopenia, hypergammaglobulinemia, emaciation, and an earth-gray color of the skin; cutaneous is characterized by development of single or multiple localized lesions on exposed areas of skin that typically ulcerate.

ICD-10-CM B55.9 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 B55.9 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 B55.9: