ICD-10-CM is the new diagnosis coding system that is being developed as a replacement for ICD-9-CM, Volumes 1 & 2. The new code set includes five times as many codes as the ICD-9 codes. The new set of codes will result in sweeping changes in how coding is conducted in the physician practice. The new codes will result in more documentation, revised forms, retraining of staff and physicians and changes to software and other information technology
ICD-9-CM diagnosis codes have three to five digits that are mostly numeric (supplemental chapters have an alpha first digit). The ICD-10-CM diagnosis codes have three to seven digits with an alpha first digit, numeric second digit and alpha or numeric third through seventh digits.
The AMCNO has published numerous articles about the transition to ICD10 coding. Click the following links to view these articles.
Click here for other ICD-10 references.