A74
Non-billableOther diseases caused by chlamydiae
Other diseases caused by chlamydiae
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
- •sexually transmitted chlamydial diseasesA55-A56
- •neonatal chlamydial conjunctivitisP39.1
- •neonatal chlamydial pneumoniaP23.1
- •Reiter's diseaseM02.3
Excludes 2
Conditions not included here, but the patient may have both
- •carrier or suspected carrier of infectious diseaseZ22
- •infectious and parasitic diseases complicating pregnancy, childbirth and the puerperiumO98
- •infectious and parasitic diseases specific to the perinatal periodP35-P39
- •influenza and other acute respiratory infectionsJ00-J22
- •chlamydial pneumoniaJ16.0
Use Additional Code
Additional codes that should follow this code
Child Codes (3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for other diseases caused by chlamydiae?
The ICD-10-CM code for other diseases caused by chlamydiae is A74. The full clinical description is "Other diseases caused by chlamydiae". A74 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code A74 mean?
ICD-10-CM code A74 represents “Other diseases caused by chlamydiae”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.
Is A74 a billable code?
No, A74 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under A74.
What chapter is A74 in?
A74 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A74?
A74 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; sexually transmitted chlamydial diseases (A55-A56); neonatal chlamydial conjunctivitis (P39.1); and 2 more.
What are the subcategories under A74?
A74 has 3 child codes, including: A74.0 (Chlamydial conjunctivitis), A74.8 (Other chlamydial diseases), A74.9 (Chlamydial infection, unspecified).
Are additional codes required with A74?
Yes, when using A74, also report: resistance to antimicrobial drugs (Z16.-).
What are the UMLS CUIs for A74?
A74 is linked to 1 UMLS Concept Unique Identifier: C0348161. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A74 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other diseases caused by chlamydiae affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of A74?
A74 maps to the ICD-11 code: 1C2Z (Diseases due to chlamydiae, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.