Question: A patient is seen by the physician two days following an ethmoidectomy. The patient complains of pain in and around the ethmoid sinus. What diagnosis code should I use to report this condition? Arizona Subscriber Answer: You’ll want to consider the circumstances surrounding the patient’s pain before incorrectly reporting a diagnosis code such as J34.89 (Other specified disorders of nose and nasal sinuses). Since this is a postoperative symptom, you should report the patient’s pain diagnosis accordingly. The 2019 ICD-10-CM guidelines instruct you to report a postoperative pain code from category G depending on whether the pain is related to a postoperative complication. Assuming the provider does not document a postoperative complication that can account for the patient’s pain, you should abide by the following guidelines in Section 1.C.6.b: However, before reporting a code under category G89, consider this additional guideline: It’s up to your provider to appropriately document whether or not the patient is experiencing typical postoperative pain, or whether the pain is atypical for an ethmoidectomy procedure. Assuming the provider documents that the pain is atypical, you should report code G89.18 (Other acute postprocedural pain).