ICD (International Classification of Diseases) is a system of codes and classifications used to document and track diseases and other health-related conditions. ICD-9 and ICD-10 are two versions of the ICD system that differ in various ways.
Here are some of the basic differences between ICD-9 and ICD-10:
- Number of codes: ICD-9 has around 14,000 codes, while ICD-10 has around 68,000 codes. This means that ICD-10 is much more detailed and specific than ICD-9.
- Format of codes: ICD-9 codes are three to five digits long, while ICD-10 codes are seven characters long and include both letters and numbers.
- Specificity: ICD-10 codes offer much greater specificity than ICD-9 codes. For example, ICD-10 codes may include information about the severity of a condition, the location of a fracture, or the trimester of a pregnancy.
- Implementation date: ICD-9 was implemented in the United States in 1979, while ICD-10 was implemented in 2015.
- Mapping: Mapping between ICD-9 and ICD-10 codes can be difficult due to the differences in code structure and specificity.
Overall, the switch to ICD-10 allows for greater accuracy in documenting and tracking health-related conditions, as well as better communication among healthcare professionals.