ICD-10-CM 2027
ICD-10 code for Climatic bubo
From the official ICD-10-CM alphabetic index entry “Bubo › climatic”. Page updated September 29, 2026.
About coding Climatic bubo
The ICD-10-CM code for Climatic bubo is A55 (Chlamydial lymphogranuloma (venereum)).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 727 (Inflammation of the Male Reproductive System with MCC, relative weight 1.37), DRG 728 (Inflammation of the Male Reproductive System without MCC, relative weight 0.8224), DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 757 (Infections, Female Reproductive System with MCC, relative weight 1.4649), DRG 758 (Infections, Female Reproductive System with CC, relative weight 0.9908) and 1 more, in MDC 12 (Diseases and Disorders of the Male Reproductive System) and MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Common questions about Climatic bubo ICD-10 codes
What is the ICD-10 code for Climatic bubo?
- A55 — Chlamydial lymphogranuloma (venereum).
Is A55 billable?
- Yes. A55 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A55 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A55 as a principal diagnosis.
Is A55 a CC or MCC?
- No. A55 is neither a CC nor an MCC under MS-DRG v44.0.