- IgE (immune system protein) level
- Image-guided puncture and drainage (aspiration) of cyst or abscess
- Image-guided puncture and drainage (aspiration) of cyst or abscess in the breast
- Image of the heart to assess perfusion
- Immunization administered orally or nasally
- Immunization administration by a medical assistant or nurse
- Immunization administration in children <18
- Immunoassay for infectious agent antibody
- Immunoassay other than infectious agent antibody
- Immunofixation electrophoresis; serum
- Immunologic analysis technique on body fluid; Immunofixation electrophoresis
- Implantation of cochlear device
- Implant drug-eluting stent
- Implant Permanent Cardiac Pacemaker
- Incision and drainage of hematoma, seroma or fluid collection
- Incision and drainage of pilonidal (near tailbone) cyst
- Incision and drainage, perianal abscess, superficial
- Incision and removal of foreign body, subcutaneous tissues; simple
- Incision, extensor tendon sheath, wrist
- Incorporates the use of multiple parameters, such as balance, strength, and range of motion, for a functional activity
- Inguinal hernia repair (age over 5)
- Initial new patient preventive medicine evaluation (18-39 years)
- Initial new patient preventive medicine evaluation (40-64 years)
- Initial visit for an infant
- Initial visit for new patients 1-4 years old
- Initial visit for new patients 1-4 years old
- Initial visit for new patients 65 and older years old
- Injection of drug into the eye
- Injection of fertilized eggs into uterus
- Injection of medication into an are that triggers pain