Is ICD-10-PCS similar to ICD-9-CM procedure coding or is it different?
The structure of ICD-10-PCS and ICD-9-CM is different. ICD-9-CM procedures have 3 or 4 numeric digits. ICD-10-PCS has 7 alpha or numeric digits providing greater precision and specificity. The added detail will maximize the value of clinical data and result in the benefit of an interoperable electronic health records system among many other benefits. In ICD-10-PCS, the letters I and O are not used so there is no confusion about the numbers 1 and 0.
