AAPC is the nation’s largest training and credentialing organization for the business side of medicine. The organization’s certified members in medical coding, medical auditing, compliance, and practice management represent the highest level of expertise in the industry.
AHIMA is a health information management (HIM) professional association with more than 64,000 members. The association is committed to providing quality healthcare through quality information.
For over 160 years the AMA has promoted scientific advancement, improved public health, and invested in the doctor and patient relationship. The association is the trusted source for official Current Procedural Terminology (CPT®)—the most widely accepted medical nomenclature used to report medical procedures and services under public and private health insurance programs.
CDC is the nation's premier health protection agency – saving lives, protecting people from health threats, and saving money through prevention. The CDC's National Center for Health Statistics (NCHS) is one of the US agencies that oversees changes and modifications to the ICD-9-CM. The NCHS site provides ICD-9-CM addenda, conversion tables, and guidelines.
http://www.cdc.gov/nchs/icd/icd9cm_addenda_guidelines.htm#guidelines
The CMS is a US federal agency that administers Medicare, Medicaid, and the Children's Health Insurance Program. Medicare.gov is the official US government site providing information on Medicare coverage, coding, billing, coordination of benefits, and much more.
The NLM has been a center of information innovation since its founding in 1836. Its UMLS, or Unified Medical Language System, is a set of files and software that brings together many health and biomedical vocabularies and standards to enable interoperability between computer systems.
http://www.nlm.nih.gov/research/umls/Snomed/snomed_main.html
WHO is responsible for providing leadership on global health matters, shaping the health research agenda, and monitoring and assessing health trends, apart from carrying out other key functions. Its programs and projects section covers International Classification of Diseases (ICD) revision.
