CPT stands for Current Procedural Terminology. These codes are used to give a uniform term for procedures for the purpose of efficiency in filing claims. There is a particular code for every medical service. You might find this helpful for further information: patients.about.com/od/costsconsumerism/a/cptcodes.htm
There are two CPT codes for a loop duodenojejunostomy. CPT 48153 is for the procedure with pancreatojejunostomy. CPT 48154 is for the procedure without pancreatojejunostomy.
The answer is 58670 or 58671, unless done at the same time as a c-section or other intra-abdominal procedure. In that case it would be 58611, along with the primary CPT code performed.
20931 - Allograft, structural, for spine surgery only (List separately in addition to code for primary procedure).
If I'm understanding your question correctly, the answer is yes. If a procedure or service is not found in the CPT codebook, a "unlisted procedure" number is used.
If you cannot locate a CPT code for a surgical procedure then you should consult a supervisor.
76936
CPT code 43215
Orthopnea is a symptom, not a procedure. It can have an ICD9 code but not a CPT code.
CPT Code 96999- Unlisted special dermatological service or procedure.
CPT code 90899 : Unlisted psychiatric service or procedure
88304