Non-Billable / Non-Specific Code
ICD-10-CM A74 is the diagnosis code for Other diseases caused by chlamydiae. This code falls under the section "Other diseases caused by chlamydiae" within Chapter 1 â Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as A74. They are mutually exclusive:
The following conditions are not included in A74. If the patient has both, code each condition separately:
Understanding where A74 sits in the ICD-10-CM classification helps ensure proper coding:
No, A74 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
A74 is the ICD-10-CM diagnosis code for "Other diseases caused by chlamydiae". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A74 is located in Section A70-A74 â "Other diseases caused by chlamydiae" within Chapter 1 of the ICD-10-CM Tabular List.
A74 has 3 sub-code(s) that provide more specific detail: A74.0, A74.8, A74.9.
Use A74 when the patients documented diagnosis matches "Other diseases caused by chlamydiae" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Other diseases caused by chlamydiae is A74.
No, A74 is non-billable. Use a more specific sub-code for primary diagnosis billing.
A74 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for A74 include: neonatal chlamydial conjunctivitis (P39.1); neonatal chlamydial pneumonia (P23.1); Reiter's disease (M02.3-) and more.
Yes, A74 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.