2020 ICD-10-CM Diagnosis Code A74.0

Chlamydial conjunctivitis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • A74.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM A74.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of A74.0 - other international versions of ICD-10 A74.0 may differ.
Applicable To
  • Paratrachoma
The following code(s) above A74.0 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 A74.0:
  • A00-B99
    2020 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
  • A70-A74
    2020 ICD-10-CM Range A70-A74

    Other diseases caused by chlamydiae

    Type 1 Excludes
    • sexually transmitted chlamydial diseases (A55-A56)
    Other diseases caused by chlamydiae
  • A74
    ICD-10-CM Diagnosis Code A74

    Other diseases caused by chlamydiae

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • neonatal chlamydial conjunctivitis (P39.1)
    • neonatal chlamydial pneumonia (P23.1)
    • Reiter's disease (M02.3-)
    • sexually transmitted chlamydial diseases (A55-A56)
    Type 2 Excludes
    • chlamydial pneumonia (J16.0)
    Other diseases caused by chlamydiae
Approximate Synonyms
  • Bilateral chlamydial conjunctivitis
  • Left chlamydial conjunctivitis
  • Neonatal inclusion body conjunctivitis
  • Neonatal inclusion conjunctivitis
  • Right chlamydial conjunctivitis
Clinical Information
  • An infection of the eyes characterized by the presence in conjunctival epithelial cells of inclusion bodies indistinguishable from those of trachoma. It is acquired by infants during birth and by adults from swimming pools. The etiological agent is chlamydia trachomatis whose natural habitat appears to be the genito-urinary tract. Inclusion conjunctivitis is a less severe disease than trachoma and usually clears up spontaneously.
  • Infection of the eyes characterized by the presence in conjunctival epithelial cells of inclusion bodies indistinguishable from those of trachoma; it is acquired by infants during birth and by adults from swimming pools; the etiological agent is chlamydia trachomatis whose natural habitat appears to be the genito-urinary tract.
ICD-10-CM A74.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 124 Other disorders of the eye with mcc
  • 125 Other disorders of the eye without mcc

Convert A74.0 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

Diagnosis Index entries containing back-references to A74.0:
  • Chlamydia, chlamydial A74.9
    ICD-10-CM Diagnosis Code A74.9

    Chlamydial infection, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Chlamydiosis NOS
    • conjunctivitis A74.0
  • Conjunctivitis (staphylococcal) (streptococcal) H10.9
    ICD-10-CM Diagnosis Code H10.9

    Unspecified conjunctivitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    • chlamydial A74.0
    • in (due to)
      • Chlamydia A74.0
    • inclusion A74.0
  • Disease, diseased - see also Syndrome
    • conjunctiva H11.9
      ICD-10-CM Diagnosis Code H11.9

      Unspecified disorder of conjunctiva

        2016 2017 2018 2019 2020 Billable/Specific Code
      • chlamydial A74.0
  • Paratrachoma A74.0

ICD-10-CM Codes Adjacent To A74.0
A69.23 Arthritis due to Lyme disease
A69.29 Other conditions associated with Lyme disease
A69.8 Other specified spirochetal infections
A69.9 Spirochetal infection, unspecified
A70 Chlamydia psittaci infections
A71 Trachoma
A71.0 Initial stage of trachoma
A71.1 Active stage of trachoma
A71.9 Trachoma, unspecified
A74 Other diseases caused by chlamydiae
A74.0 Chlamydial conjunctivitis
A74.8 Other chlamydial diseases
A74.81 Chlamydial peritonitis
A74.89 Other chlamydial diseases
A74.9 Chlamydial infection, unspecified
A75 Typhus fever
A75.0 Epidemic louse-borne typhus fever due to Rickettsia prowazekii
A75.1 Recrudescent typhus [Brill's disease]
A75.2 Typhus fever due to Rickettsia typhi
A75.3 Typhus fever due to Rickettsia tsutsugamushi
A75.9 Typhus fever, unspecified

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