ICD-10-CM 2027
ICD-10 code for Bubo
From the official ICD-10-CM alphabetic index entry “Bubo”. Page updated September 29, 2026.
About coding Bubo
The ICD-10-CM code for Bubo is I88.8 (Other nonspecific lymphadenitis). The official index lists 17 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I88.8.
Within I88, choose I88.8 (Other nonspecific lymphadenitis) only when documentation doesn't support a more specific option: nonspecific mesenteric lymphadenitis (I88.0), chronic lymphadenitis, except mesenteric (I88.1) and unspecified (I88.9).
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 814 (Reticuloendothelial and Immunity Disorders with MCC, relative weight 2.0729), DRG 815 (Reticuloendothelial and Immunity Disorders with CC, relative weight 1.0444) and DRG 816 (Reticuloendothelial and Immunity Disorders without CC/MCC, relative weight 0.7381), in MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Bubo codes (official index)
- blennorrhagic (gonococcal) A54.89 — Other gonococcal infections
- chancroidal A57 — Chancroid
- climatic A55 — Chlamydial lymphogranuloma (venereum)
- due to Haemophilus ducreyi A57 — Chancroid
- gonococcal A54.89 — Other gonococcal infections
- indolent (nonspecific) I88.8 — Other nonspecific lymphadenitis
- inguinal (nonspecific) I88.8 — Other nonspecific lymphadenitis
- chancroidal A57 — Chancroid
- climatic A55 — Chlamydial lymphogranuloma (venereum)
- due to H. ducreyi A57 — Chancroid
- infective I88.8 — Other nonspecific lymphadenitis
- scrofulous (tuberculous) A18.2 — Tuberculous peripheral lymphadenopathy
- soft chancre A57 — Chancroid
- suppurating
- syphilitic (primary) A51.0 — Primary genital syphilis
- congenital A50.07 — Early mucocutaneous congenital syphilis
- tropical A55 — Chlamydial lymphogranuloma (venereum)
- virulent (chancroidal) A57 — Chancroid
Common questions about Bubo ICD-10 codes
What is the ICD-10 code for Bubo?
- I88.8 — Other nonspecific lymphadenitis. More specific codes apply when the documentation supports them: A54.89, A57, A55, A57 and others below.
What is the ICD-10 code for blennorrhagic bubo?
- A54.89 — Other gonococcal infections.
What is the ICD-10 code for chancroidal bubo?
- A57 — Chancroid.
What is the ICD-10 code for climatic bubo?
- A55 — Chlamydial lymphogranuloma (venereum).
What is the ICD-10 code for gonococcal bubo?
- A54.89 — Other gonococcal infections.
What is the ICD-10 code for indolent bubo?
- I88.8 — Other nonspecific lymphadenitis.
What is the ICD-10 code for inguinal bubo?
- I88.8 — Other nonspecific lymphadenitis.
Is I88.8 billable?
- Yes. I88.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I88.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I88.8 as a principal diagnosis.
Is I88.8 a CC or MCC?
- No. I88.8 is neither a CC nor an MCC under MS-DRG v44.0.