CPT 87491: Chlamydia trachomatis Amplified Probe – Not PEG

CPT 87491 = Infectious agent detection by nucleic acid (DNA/RNA); Chlamydia trachomatis, amplified probe technique.

The source text incorrectly describes it as “Percutaneous endoscopic gastrostomy (PEG).” PEG codes are 43246 (EGD with PEG placement) or 49440 (fluoroscopic).

87491 Details

• NAAT (PCR, TMA, SDA) for C. trachomatis.
• Specimen: urine, endocervical, urethral, rectal, pharyngeal swabs.
• Reported per organism; use 87492 for N. gonorrhoeae (often co-ordered).

Coding Tip

Do not confuse microbiology codes (87xxx) with procedure codes (4xxxx). Verify in current CPT®.