Am I right in assuming that in many cases PCS codes require an accompanying ICD DX code in order to identify a procedure? For example, I tried finding a PCS code for a Pilonidal Sinus Excision. The closest code I see is fairly generic: 0HB8XZZ Excision of Buttock Skin, External Approach.
Unless I’m wrong, this same PCS code looks like the only option for other similar conditions, like:
Pilonidal cyst with abscess,
Pilonidal cyst without abscess,
Pilonidal sinus with abscess,
Pilonidal sinus without abscess.
The above look like multiple ICD DX per 1 PCS. It happens the other way, too. For example, when looking up a vasectomy, I see one ICD-10-CM code: Z98.52, however there appear to be multiple PCS codes for the same diagnosis --I’m guessing traditional and no scalpel(?):
0VBQ0ZZ Excision of Bilateral Vas Deferens, Open Approach
0VBQ3ZZ Excision of Bilateral Vas Deferens, Percutaneous
So, is the combination of ICD-10-CM and PCS required, and if so, how can I get a list of valid mappings between the two?