ICD-9-CM Diagnosis Code 099.51
Diagnosis Code: 099.51 (Raw: 09951)
Description: Other venereal diseases due to chlamydia trachomatis, pharynx
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code 099.51 is designated for Other venereal diseases due to chlamydia trachomatis, pharynx. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.
