Structural Differences Between Id-9 And ICD-10

Between ICD-9 and ICD-10 there’s a few structural differences to take a in consideration. For one, ICD-9 codes are 3 to 5 characters in length, while ICD-10 codes are 3 to 7 characters in length. This difference expands the amount of codes available to use under ICD-10. Another structural difference is the way the codes are laid out. The first digit to ICD-9 code can be either numerical or alpha, while the remaining codes 2-5 are always numeric. For ICD-10, the first digit is always alpha, digits 2-3 are always numeric and digits 4-7 are either alpha or numeric.

As far as the meaning of CM and PCS, CM stands for clinical modifications and PCS stands for Procedure Coding System. CM codes are used for all health care treatment settings in the