2024 ICD-10-CM Diagnosis Code A55

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Chlamydial lymphogranuloma (venereum)

  • A55 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 A55 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A55 – other international versions of ICD-10 A55 may differ.

Applicable To

  • Climatic or tropical bubo
  • Durand-Nicolas-Favre disease
  • Esthiomene
  • Lymphogranuloma inguinale

The following code(s) above A55 contain annotation back-references

 that may be applicable to A55:

  • A00-B99  Certain infectious and parasitic diseases
  • A50-A64  Infections with a predominantly sexual mode of transmission

Approximate Synonyms

  • Lymphogranuloma venereum

Clinical Information

  • Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of chlamydia trachomatis. It is a sexually transmitted disease in the United States But is more widespread in developing countries. It is distinguished from granuloma venereum (see granuloma inguinale), which is caused by calymmatobacterium granulomatis.
  • Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of chlamydia trachomatis; a sexually transmitted disease in the United States but is more widespread in developing countries; do not confuse with granuloma venereum, which is caused by calymmatobacterium granulomatis, for this use enterobacteriaceae disease.

ICD-10-CM A55 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 727 Inflammation of the male reproductive system with mcc
  • 728 Inflammation of the male reproductive system without mcc
  • 742 Uterine and adnexa procedures for non-malignancy with cc/mcc
  • 743 Uterine and adnexa procedures for non-malignancy without cc/mcc
  • 757 Infections, female reproductive system with mcc
  • 758 Infections, female reproductive system with cc
  • 759 Infections, female reproductive system without cc/mcc

Convert A55 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

Code annotations containing back-references to A55:

  • Type 2 Excludes: A56

Diagnosis Index entries containing back-references to A55: