Pain and Anesthetic Injection Coding
When billing for injections like joint (e.g., CPT 20610) or trigger point injections, you must bill for both the administration of the injection and the substance injected (the J-code). Forgetting to bill the J-code is a common mistake that leaves revenue on the table. Documentation should clearly state the location, the substance, and the dosage.
Infusion Therapy Billing
Infusion coding (CPT 96365-96379) is notoriously complex. It relies on a hierarchy of "initial," "sequential," and "concurrent" services. Most importantly, billing is based on time. Your clinical notes must document the exact start and stop times of each infusion to justify the units billed. Failure to do so will trigger an automatic denial upon audit.
Billing for Dermatologic Procedures
Family practices frequently perform minor skin procedures like lesion destruction (e.g., 17110) or biopsies (e.g., 11102). A key question is whether to bill an E/M visit on the same day. The rule is simple: if the patient came in for the procedure and that's all that was done, you cannot bill a separate E/M. If, however, you performed a significant, separately identifiable evaluation for a different problem, you can bill an E/M with modifier 25.
Be Cautious with Modifier 25: Overuse of modifier 25 is a major audit trigger. Ensure your documentation robustly supports the medical necessity of the separate E/M service.
Wound Care Billing Essentials
Wound debridement codes (e.g., 97597 for selective, 11042-11047 for non-selective) are chosen based on the depth of tissue removed (e.g., skin, subcutaneous tissue, muscle, bone) and, for some codes, the surface area of the wound. Clear documentation of these details is non-negotiable. Note that most routine dressings and supplies are bundled into the procedure code and cannot be billed separately.
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