October's Coding Top 10 questions cover injury-claim exams, diagnosis-code basics and coding ICD-10 for diabetes.

1. Submitting injury claim exams
   When submitting injury claim exams do we need to report where and how the injury occurred in addition to the injury itself?
2. How to code diabetes with no ophthalmic disease progression
   What is the best diagnosis code to use when a patient is sent to our practice because they have diabetes, but no ophthalmic disease progression is diagnosed?
3. Should you report insulin use for patients with diabetes?
   Should we be reporting insulin use Z79.4 for our patients with diabetes?
4. Coding exams for patients on high-risk medications
   How should we code exams for patients on high-risk medications in ICD-10?
5. Blepharitis exam reporting: How many lids?
   Blepharitis is reported by lid, not by eye, so must I report all four lids for payment on my exam?
6. ICD-10 codes for complex cataract surgery
   How can I indicate to the payer that that the cataract surgery was complex?
7. Modifiers and ICD-10 code laterality
   Are modifiers –RT and –LT still required for CPT codes or is the laterality of ICD-10 sufficient?
8. Linking ICD-10 codes for bilateral age-related nuclear cataracts
   The patient is diagnosed with bilateral age-related nuclear cataracts. It’s determined that cataract surgery will be performed in the right eye and an A-scan is performed the same day. How should the ICD-10 codes should be linked?
9. What diagnosis codes should be reported?
   What diagnosis codes should be reported? All that apply to the patient or all that apply to today’s visit?
10. Are there known billing issues with diagnosis codes H50.2 and H52.0?
    My pediatric ophthalmologist heard claims will be denied because two diagnosis codes are considered mutually exclusive. I could not find any information regarding this on these two diagnosis codes--H50.2 and H52.0. Have you seen or heard of any issues when billing with these two diagnosis codes?