2021 ICD-10-CM Diagnosis Code A55

Chlamydial lymphogranuloma (venereum)

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • A55 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM A55 became effective on October 1, 2020.
  • 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
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to A55:
  • A00-B99
    2021 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A50-A64
    2021 ICD-10-CM Range A50-A64

    Infections with a predominantly sexual mode of transmission

    Type 1 Excludes
    • human immunodeficiency virus [HIV] disease (B20)
    • nonspecific and nongonococcal urethritis (N34.1)
    • Reiter's disease (M02.3-)
    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 v38.0):
  • 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-CM

Code 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
Code annotations containing back-references to A55:
  • Type 2 Excludes: A56
    ICD-10-CM Diagnosis Code A56

    Other sexually transmitted chlamydial diseases

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • sexually transmitted diseases due to Chlamydia
    • trachomatis
    Type 1 Excludes
    • neonatal chlamydial conjunctivitis (P39.1)
    • neonatal chlamydial pneumonia (P23.1)
    Type 2 Excludes
    • chlamydial lymphogranuloma (A55)
    • conditions classified to A74.-

Diagnosis Index entries containing back-references to A55:
  • Bubo I88.8
    ICD-10-CM Diagnosis Code I88.8

    Other nonspecific lymphadenitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • inguinal (nonspecific) I88.8
      ICD-10-CM Diagnosis Code I88.8

      Other nonspecific lymphadenitis

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • climatic A55
    • climatic A55
    • tropical A55
  • Disease, diseased - see also Syndrome
    • venereal A64
      - see also Disease, sexually transmitted
      ICD-10-CM Diagnosis Code A64

      Unspecified sexually transmitted disease

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • fifth A55
      • sixth A55
    • Durand-Nicholas-Favre A55 (climatic bubo)
    • Favre-Durand-Nicolas A55 (climatic bubo)
    • Frei's A55 (climatic bubo)
    • Nicolas A55 (-Durand)-Favre (climatic bubo)
  • Durand-Nicolas-Favre disease A55
  • Esthiomene A55
  • Fifth disease B08.3
    ICD-10-CM Diagnosis Code B08.3

    Erythema infectiosum [fifth disease]

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • venereal A55
  • Frei's disease A55
  • Genito-anorectal syndrome A55
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • Chlamydia, chlamydial A74.9
      ICD-10-CM Diagnosis Code A74.9

      Chlamydial infection, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Chlamydiosis NOS
      • lymphogranuloma A55
  • Lymphadenitis I88.9
    ICD-10-CM Diagnosis Code I88.9

    Nonspecific lymphadenitis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Lymphadenitis NOS
    • due to
      • chlamydial lymphogranuloma A55
      • lymphogranuloma venereum A55
    • venereal A55 (chlamydial)
  • Lymphogranuloma (malignant) - see also Lymphoma, Hodgkin
    • chlamydial A55
    • inguinale A55
    • venereum A55 (any site) (chlamydial) (with stricture of rectum)
  • Lymphopathia venereum, veneris A55
  • Nicolas A55 (-Durand)
  • Poradenitis, nostras inguinalis or venerea A55
  • Stricture - see also Stenosis
    • rectum (sphincter) K62.4
      ICD-10-CM Diagnosis Code K62.4

      Stenosis of anus and rectum

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Stricture of anus (sphincter)
      • due to
        • chlamydial lymphogranuloma A55
        • lymphogranuloma venereum A55
      • inflammatory A55 (chlamydial)
  • Syndrome - see also Disease
    • genito-anorectal A55
  • Venereal
    • bubo A55
    • lymphogranuloma A55 (Durand-Nicolas-Favre)

ICD-10-CM Codes Adjacent To A55
A54.6 Gonococcal infection of anus and rectum
A54.8 Other gonococcal infections
A54.81 Gonococcal meningitis
A54.82 Gonococcal brain abscess
A54.83 Gonococcal heart infection
A54.84 Gonococcal pneumonia
A54.85 Gonococcal peritonitis
A54.86 Gonococcal sepsis
A54.89 Other gonococcal infections
A54.9 Gonococcal infection, unspecified
A55 Chlamydial lymphogranuloma (venereum)
A56 Other sexually transmitted chlamydial diseases
A56.0 Chlamydial infection of lower genitourinary tract
A56.00 …… unspecified
A56.01 Chlamydial cystitis and urethritis
A56.02 Chlamydial vulvovaginitis
A56.09 Other chlamydial infection of lower genitourinary tract
A56.1 Chlamydial infection of pelviperitoneum and other genitourinary organs
A56.11 Chlamydial female pelvic inflammatory disease
A56.19 Other chlamydial genitourinary infection
A56.2 Chlamydial infection of genitourinary tract, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.