CPT Code 93451: Right Heart Catheterization

If both right and left heart catheterizations are performed, use the comprehensive code 93453. Alternatively, if billed separately, documentation must clearly support that each service was distinct and medically necessary, and appropriate modifiers should be used.

Pulmonary angiography is not included in CPT 93451. If performed during the same session, it must be reported separately using add-on codes 93567 or 93568, with supporting documentation and justification.

Many insurers require prior authorization, particularly for repeat studies or when performed as part of complex heart disease evaluation. Always confirm coverage with the payer prior to scheduling the procedure.