Question: What do the various credentials surrounding billing/coding/ practice management stand for, anyway? Iowa Subscriber Answer: The following acronyms are certifications you may be familiar with but not know what they actually mean. These are all offered by AAPC: Note: “CPMA®, CPCO™, CPPM®, CRC, CIC, CPB and specialty credentials are standalone certifications with no requirement to hold a CPC®, COC™ (formerly CPC-H®), or CPC-P® credential,” AAPC says.