Get NCTracks ICD-9 and ICD-10 Procedure Code Comparison

While CPT codes are similar to ICD-10 codes, CPT codes identify services rendered, whereas ICD-10 codes represent patient diagnoses.

While CPT codes are similar to ICD-10 codes, CPT codes identify services rendered, whereas ICD-10 codes represent patient diagnoses.

ICD-10 codes begin with a letter, while the first digit of an ICD-9 code can be either alpha or numeric. As such, one of the easiest ways to determine if you are using ICD-9 codes is to make sure the first digit is not a number.

The ICD-9-CM codes are for the disorder or disorders you are treating while the CPT codes are for reporting the procedure or procedures you performed. The ICD-9-CM is coordinated and maintained by the federal government while the AMA maintains and updates the CPT codes.

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.

ICD-9-CM codes are very different than ICD-10-CM/PCS code sets: There are nearly 19 times as many procedure codes in ICD-10-PCS than in ICD-9-CM volume 3. There are nearly 5 times as many diagnosis codes in ICD-10-CM than in ICD-9-CM. ICD-10 has alphanumeric categories instead of numeric ones.

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 Centers for Medicare & Medicaid Services (CMS) is implementing 34 new procedure codes into the International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS), effective April 01, 2023.