Three Levels of HCPCS
The Healthcare Common Procedure Coding System (HCPCS) has three different levels and just to make things more interesting, Level I is not usually called HCPCS, it's called CPT. The Current Procedural Terminology (CPT) was developed and is maintained by the American Medical Association (AMA).
By Physicians for Physicians
What makes CPT so unique is that it is the only coding system in the HIPAA-approved code sets that is developed by physicians for physicians. The codes you see in the CPT code book are the result of various medical and surgical societies coming together with the AMA to decide which procedures deserve their very own CPT codes. Every year at the AMA's CPT Symposium, coders from around the country gather in Chicago to listen to these physicians present the coding updates for the coming year. It's an expensive but valuable conference that I think every coder should experience at least once.

Three within Three
- The procedure must have FDA approval
- The procedure must be commonly performed by practitioners nationwide
- The procedure must have proven efficacy
- Evaluation and Management (E/M) (codes beginning with 9)
- Anesthesia (codes beginning with 0)
- Surgery (codes beginning with 1-6)
- Radiology (codes beginning with 7)
- Pathology and Laboratory
- Medicine (the rest of the codes beginning with 9)
- 99283, Emergency department visit for the evaluation and management of a patient, which requires these 3 key components: An expanded problem focused history; An expanded problem focused examination; and Medical decision making of moderate complexity
- 12002, Simple repair of superficial wounds of scalp, neck, axillae, external genitalia, trunk and/or extremities; 2.6cm to 7.5cm
- 75625, Aortography, abdominal, by serialography, radiological supervision and interpretation
- 1040F, DSM-5 criteria for major depressive disorder documented at the initial evaluation (MDD, MDD ADOL)1
- 3775F, Adenoma(s) or other neoplasm detected during screening colonoscopy (SCADR)12
- 0387T, Transcatheter insertion or replacement of permanent lead less pacemaker, ventricular
- 0274T, Percutaneous laminotomy/laminectomy (intralaminar approach) for decompression of neural elements, (with or without ligamentous resection, discectomy, facetectomy and/or foraminotomy) any method under indirect image guidance (eg, fluoroscopic, CT), with or without the use of an endoscope, single or multiple levels, unilateral or bilateral; cervical or thoracic
By the way, the errata is on the list of approved materials for the AAPC exams. The year I took the CIRCC exam (Certified Interventional Radiology and Cardiology Coder), there were a lot of errors in the electrophysiology code notes and the errata was something I really needed. Be sure to check it out!
I also really can't talk about CPT without bringing up a little tiny thing from the hospital side called a charge description master (CDM), or as it's more commonly called, the charge master. It's as masterful as it sounds: a line-item listing of everything a hospital department charges for. Each line item has a description of the charge, charge amount, and sometimes a CPT code. One of the most difficult transitions I see in pro-fee coders crossing over to the hospital side is not understanding that the coder doesn't code everything. There are many codes that are assigned automatically by the charge master when a charge is applied to the bill. This is the case when the CPT code doesn't require a lot of subjective reasoning (e.g., lab test or x-ray). For those procedures and services, such as operative procedures, that require subjective reasoning, a real-live coder will assign the code. It may sound counter intuitive, but this actually increases the amount of coding-related jobs in a hospital. The charge master analyst requires coding knowledge as he/she works with hospital departments to set up charges, research appropriate CPT codes for the procedure or service, and determine if it will be hard coded (by the charge master) or soft coded (by a person in coding).
CPT Made (Too?) Simple
This posting really oversimplifies the CPT code set (that's right, it gets more complex!), but it's a start if you're still finding your way in the coding field. I have a love-hate relationship with CPT because I find it both challenging (love!) but also frustrating when I hear conflicting coding advice between CMS, the AMA, and medical/surgical societies (hate!). If you find that you love all aspects of CPT, then you can have a very lucrative career in either the pro-fee or facility coding arenas.
Stay tuned to this series... Next up is HCPCS Level II.