Dr Kathy Terry
April 14th, 2005, 01:08 PM
The official coding guidelines for ICD-9-CM have been updated March 16, 2005. These guidelines are effective April 1, 2005.
http://www.cdc.gov/nchs/data/icd9/icdguide.pdf
http://www.cdc.gov/nchs/data/icd9/icdguide.pdf