Final answer:
The procedure code for excising a chalazion from each upper eyelid is CPT code 67800, and the diagnosis code is H00.1, differentiated by H00.151 for the right eyelid and H00.152 for the left eyelid. Modifiers are important for procedures performed on multiple structures.
Step-by-step explanation:
The question relates to the medical coding for a surgical procedure where a provider excises one chalazion from each upper eyelid under general anesthesia. For the procedure coding, the Current Procedural Terminology (CPT) code to use would be 67800, which is the code for excision of chalazion; single. However, since the procedure was performed on both eyes, a modifier might be necessary to indicate that the procedure was done on separate structures (such as the right and left eyes). Diagnosis codes are drawn from the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM). The diagnosis code for chalazion is H00.1, specifically H00.15 for chalazion of the upper eyelid and designations such as H00.151 for the right upper eyelid and H00.152 for the left upper eyelid would apply if specifying the eyelids.
When recording multiple procedures or diagnoses, proper sequencing and use of modifiers are crucial to ensure accurate billing and record-keeping. It's important to check with the latest coding guidelines and payer policies as they change over time.