Medical coding consists of translating diagnoses and procedures into numbers for the purpose of statistically capturing data.
A nomenclature is a system of names that are used as preferred terminology (in this case, for diseases and procedures). Classification systems group together similar items for easy storage and retrieval. The ICD-10-CM classification system is a closed system that comprises diseases, injuries, surgeries, and procedures. In a closed classification system a disease, condition, or procedure can only be classified in one place.
ICD-9-CM, a publication of the U.S. Department of Health and Human Services, consists of 3 volumes.
ICD-10-CM will replace ICD-9-CM, which has been in use for 30 years. The final rule for adoption of ICD-10-CM and ICD-10-PCS was released in January 2009. ICD-10 Tabular Volume was published in 1992. ICD-10 Instructional Volume was published in 1993. ICD-10 Alphabetic Index was published in 1994.
ICD-9-CM Coordination and Maintenance Committee meets twice a year. Upon full implementation of ICD-10-CM/PCS this will become the ICD-10 Coordination and Maintenance Committee. 2 Federal agencies are responsible for maintenance of ICD-9-CM: NCHS – Classification of diagnoses CMS – Classification of procedures
Along with above knowledge, also educate on the following: Structure change Disease classification Definitions Guidelines ICD-10-PCS
Most coders take certification examinations to earn credentials and become members of a professional organization.
See Table 1-2 in this chapter to see how many CEUs are required per year.