Billable / Specific Code
ICD-10-CM A55 is the diagnosis code for Chlamydial lymphogranuloma (venereum). This code falls under the section "Infections with a predominantly sexual mode of transmission" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where A55 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, A55 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
A55 is the ICD-10-CM diagnosis code for "Chlamydial lymphogranuloma (venereum)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A55 is located in Section A50-A64 — "Infections with a predominantly sexual mode of transmission" within Chapter 1 of the ICD-10-CM Tabular List.
Use A55 when the patients documented diagnosis matches "Chlamydial lymphogranuloma (venereum)" 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 Chlamydial lymphogranuloma (venereum) is A55.
Yes, A55 can be used as a primary diagnosis code since it is billable and specific.
A55 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A55 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.