Answer :
The ICD-10-PCS code for a diagnostic open excision of the left epididymis is identified using the detailed guidelines in the ICD-10-PCS coding manual, specifying the type of procedure, site, and approach among other factors.
The ICD-10-PCS (International Classification of Diseases, 10th Revision, Procedure Coding System) code for a diagnostic open excision of the left epididymis is not directly provided in the question. To find this code, a medical professional would use the ICD-10-PCS coding system which is designed to represent medical procedures. One would reference the appropriate section starting with the broad category of the procedure to be performed, such as 'excision' or 'diagnostic excision,' followed by specifics about the site, body part, approach, and any other relevant details.
Although I cannot provide the exact code without access to the current ICD-10-PCS coding manual and more detailed procedural information, practitioners would typically look under the section pertaining to the male reproductive system and then identify codes related to the epididymis and to the diagnostic nature of the procedure.
For those coding such procedures, it is essential to have the latest coding manual or access to an updated electronic coding system, as codes can change or be updated over time.