On October 1, 2014, the United States makes the switch from ICD-9 to ICD-10 codes. In anticipation, from March 3 to March 7, the Centers for Medicare & Medicaid Services (CMS) is holding a national testing week for current direct submitters (providers and clearinghouses). With ICD-10 comes coding specificity at the sixth and seventh character level, which is not optional and will require extensive preparations by physicians and their office staff. For obstetrics alone, for example, the 10th revision includes nearly twice as many codes as the 9th revision.

Click to see the increases in obstetrical codes, diagnostic codes, and procedure codes presented in graphic form.