2024 ICD-10-CM Diagnosis Code A31.1

Cutaneous mycobacterial infection

  • A31.1 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 A31.1 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A31.1 – other international versions of ICD-10 A31.1 may differ.

Applicable To

  • Buruli ulcer
  • Infection due to Mycobacterium marinum
  • Infection due to Mycobacterium ulcerans

The following code(s) above A31.1 contain annotation back-references

 that may be applicable to A31.1:

  • A00-B99  Certain infectious and parasitic diseases
  • A31  Infection due to other mycobacteria

Approximate Synonyms

  • Buruli ulcer
  • Cutaneous infectious disease due to mycobacteria
  • Cutaneous mycobacterium marinum infection
  • Mycobacteria infection of skin
  • Mycobacterium marinum infection of skin

Clinical Information

  • A cutaneous infection caused by mycobacterium ulcerans. It presents with painless nodular swelling of the skin, leading to the formation of necrotizing ulcers.
  • A lesion in the skin and subcutaneous tissues due to infections by mycobacterium ulcerans. It was first reported in uganda, africa.

ICD-10-CM A31.1 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc

Convert A31.1 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 A31.1: