2024 ICD-10-CM Diagnosis Code A28.1

by

Cat-scratch disease

  • A28.1 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 A28.1 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A28.1 – other international versions of ICD-10 A28.1 may differ.

Applicable To

  • Cat-scratch fever

The following code(s) above A28.1 contain annotation back-references

 that may be applicable to A28.1:

  • A00-B99  Certain infectious and parasitic diseases

Approximate Synonyms

  • Cat scratch disease

Clinical Information

  • A bacterial infection caused by bartonella henselae. It is transmitted to humans from a scratch, bite, or lick from a cat. A blister or a bump appears on the skin following the scratch or bite. Subsequently, there is lymph node enlargement around the scratch or bite site. The lymph node enlargement most often occurs under the arm or the neck. Some patients experience fever, fatigue, headaches or sore throat as well.
  • A self-limiting bacterial infection of the regional lymph nodes caused by afipia felis, a gram-negative bacterium recently identified by the Centers for Disease Control and Prevention. and by bartonella henselae. It usually arises one or more weeks following a feline scratch, with raised inflammatory nodules at the site of the scratch being the primary symptom.
  • Cat scratch disease (csd) is an illness caused by the bacterium bartonella henselae. Almost half of all cats carry the infection at some point. The infection does not make cats sick. However, the scratch or bite of an infected cat can cause symptoms in people, including
    • swollen lymph nodes, especially around the head, neck and upper limbs
    • fever
    • headache
    • fatigue
    • poor appetite
    for people with weak immune systems, csd may cause more serious problems. The best way to avoid csd is to avoid rough play with cats that could lead to scratches or bites. If you do get a scratch or bite, wash it well with soap and water. If the bite or scratch gets infected or if you have symptoms of csd, call your doctor. Centers for Disease Control and Prevention.

ICD-10-CM A28.1 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 814 Reticuloendothelial and immunity disorders with mcc
  • 815 Reticuloendothelial and immunity disorders with cc
  • 816 Reticuloendothelial and immunity disorders without cc/mcc

Convert A28.1 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 A28.1:

  • Cat-scratch – see also Abrasion
    • disease or fever A28.1
  • Disease, diseased – see also Syndrome
    • cat-scratch A28.1
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
    • due to
      • cat scratch disease A28.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
    • cat-scratch A28.1
  • Lymphoreticulosis, benign A28.1 (of inoculation)