You guys are leaving a ton of $ on the table.
Bill for both the E&M and the procedure(s) if you do both... just do different dx codes. If insurance rejects the E&M or the procedures, appeal it. If they reject it a lot, bill on time and up your E&Ms... or just drop those crusty payers. If there are not different applicable dx codes for the E&M then you're not thinking hard enough you can just bill the proc code(s) only.
Heel pain f/u = 99213 for M76.821, M76.822, L85.3 and 20550-RT for M72.2, M79.671 and 20550-LT for M72.2, M79.672 and J0702-RT and J0702-LT (same icd codes as 20550s) and arch supports OTC or night splint or whatever applies (and 99214 if you do PT Rx or order MRI, etc)
Ingrown f/u (slant back didn't work or pt had scheduled it and returns) = 99213 for M20.11, L03.031 and 11750-T5 for L60.0, M79.674
Verruca f/u = 99213 for L85.3, M77.41, M77.42 and 17110 for B07.0, M79.671, M79.672
Ankle sprain f/u = 99213 for M79.671, S93.491D, R60.0 and L1902-RT for same (99214 if you Rx PT and order MRI or something)