Complete information about medical diagnosis codes, the ICD-9-CM Vol. 1 Code Set is used to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances and external causes of injury or disease.

ICD-9-CM is the official system of assigning codes to diagnoses and procedures associated with hospital utilization in the United States. The ICD-9 was used to code and classify mortality data from death certificates until 1999, when use of ICD-10 for mortality coding started.

The ICD-9-CM (International Classification of Diseases, 9th Revision, Clinical Modification) was a coding system maintained by the Centers for Medicare and Medicaid Services (CMS). It was widely used for assigning diagnostic codes to inpatient, outpatient, and physician office services.

the coding and sequencing instructions in Volumes I, II and III of ICD-9-CM, but provide additional instruction. Adherence to these guidelines when assigning ICD-9-CM diagnosis and procedure codes is required under the Health Insurance Portability and Accountability Act (HIPAA).

ICD-9-CM Diagnosis and Procedure Codes: Abbreviated and Full Code Titles; Updates and Revisions to ICD-9-CM Procedure Codes (Addendum)

2001年1月1日 · Lookup ICD-9 codes to get official descriptors and code usage advice. Codify by AAPC helps you to crosswalk from ICD-9 to ICD-10 codes.

List of ICD-9 codes 001–139: infectious and parasitic diseases; List of ICD-9 codes 140–239: neoplasms; List of ICD-9 codes 240–279: endocrine, nutritional and metabolic diseases, and immunity disorders; List of ICD-9 codes 280–289: diseases of the blood and blood-forming organs; List of ICD-9 codes 290–319: mental disorders