2022 ICD-10-CM Diagnosis Code A44

Bartonellosis

    2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
  • A44 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2022 edition of ICD-10-CM A44 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of A44 - other international versions of ICD-10 A44 may differ.
The following code(s) above A44 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 A44:
  • A00-B99
    2022 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
Clinical Information
  • A gram-negative bacterial infection caused by bartonella bacilliformis. It is transmitted by ticks, flies and mosquitoes. Signs and symptoms include fever, headache, muscle pain, enlargement of the lymph nodes and anemia.
  • Infections by the genus bartonella. Bartonella bacilliformis can cause acute febrile anemia, designated oroya fever, and a benign skin eruption, called verruga peruana. Bartonella quintana causes trench fever, while bartonella henselae is the etiologic agent of bacillary angiomatosis (angiomatosis, bacillary) and is also one of the causes of cat-scratch disease in immunocompetent patients.
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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
ICD-10-CM Codes Adjacent To A44
A42.8 Other forms of actinomycosis
A42.81 Actinomycotic meningitis
A42.82 Actinomycotic encephalitis
A42.89 Other forms of actinomycosis
A42.9 Actinomycosis, unspecified
A43 Nocardiosis
A43.0 Pulmonary nocardiosis
A43.1 Cutaneous nocardiosis
A43.8 Other forms of nocardiosis
A43.9 Nocardiosis, unspecified
A44 Bartonellosis
A44.0 Systemic bartonellosis
A44.1 Cutaneous and mucocutaneous bartonellosis
A44.8 Other forms of bartonellosis
A44.9 Bartonellosis, unspecified
A46 Erysipelas
A48 Other bacterial diseases, not elsewhere classified
A48.0 Gas gangrene
A48.1 Legionnaires' disease
A48.2 Nonpneumonic Legionnaires' disease [Pontiac fever]
A48.3 Toxic shock syndrome

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