Current Procedural Terminology (CPT) Codes codes are numbers assigned to every task and service a medical practitioner may provide to a patient including medical, surgical and diagnostic services. These are the codes used to describe the Caffeine Halothane Contracture Test:

• 20205 Biopsy, Muscle; deep
• 88399 Unlisted Misc. Pathology tests
• 88313 Special stains (group 2; all other)
• 88314 Special stains (histochemical staining)
• 88305 Level 4- surgical pathology
• 88342 Immunohistochemistry
• 36415 Collection of venous blood by venipuncture
• 82550 Creatinine Kinase (Total)
• 82552 Creatinine Kinase (Isoenzymes)