Chapter 17 — Key Takeaways

The surgical package

INCLUDED: the E/M after the decision for surgery (history, exam, consent) · local anesthesia · immediate postoperative care and dictating the note · writing orders · recovery-room evaluation · typical postoperative follow-up.

EXCLUDED — all separately reportable:

The decision-for-surgery visit is the largest silent loss in surgical billing. Practices write it off because of a rule nobody remembers making. Nothing denies, because nothing is submitted.

Global periods

Minor vs. major is a LOOKUP, not a judgment — and it decides 25 vs. 57. The Medicare Physician Fee Schedule relative value file carries it, free, in a column.

Reading an operative report

   1. Preoperative diagnosis ..... what they thought
   2. POSTOPERATIVE diagnosis .... code from THIS
   3. "Procedure performed" ...... a SUMMARY, not authoritative
   4. THE BODY ................... the source of truth

When the heading and the body disagree, the body wins — and you QUERY. You may not code a procedure the body does not document. You also may not decline to code one it does.

THE MEASUREMENT RULE

Lesion's greatest diameter + the NARROWEST REQUIRED MARGINS, measured BEFORE excision.

   0.4  +  1.8  +  0.4  =  2.6 cm
  margin  lesion  margin

NOT the pathology specimen — tissue shrinks in formalin, so coding from pathology systematically undersizes every excision, forever, with no signal. NOT the defect — that is the repair's measurement.

Multiple lesions are coded separately, each with its own measurement. Excision includes simple closure. Benign vs. malignant comes from pathology, so the code often cannot be finalized on the day of surgery — and that is correct.

Repairs

Add lengths within the SAME classification AND the SAME anatomic grouping. Report different classifications or groupings separately.

The groupings differ between complexity levels — hands and feet move. Look it up every time.

Grafts, debridement, Mohs

Adjacent tissue transfer INCLUDES the lesion excision. Measured in sq cm of primary + secondary defect.

Grafts by type (split/full thickness · auto/allo/xenograft · skin substitute) and recipient site area.

Debridement by DEPTH REMOVED — not exposed — and by area; same-depth areas are added.

Mohs: ONE physician as both surgeon AND pathologist. If someone else reads the slides, it is not Mohs. Coded by area, stage, and tissue blocks. The pathology is not separately reported; the repair is.

Musculoskeletal

Joint injections/aspirations by joint size and imaging guidance:

   LARGE joint (shoulder, hip, KNEE)
     without ultrasound guidance ................ 20610
     with ultrasound + PERMANENT RECORDING
     AND REPORT ................................. 20611

The unit is the JOINT, not the injection. No report → no 20611.

Knee compartments: medial, lateral, patellofemoral. Several arthroscopy codes are written in terms of them, and the note must name the compartment.

"(separate procedure)" — reportable only when performed alone or independently. This is where the arthroscopy rule comes from.

The fracture-care decision

Reporting global fracture care claims NINETY DAYS of that patient's follow-up. Do not claim what you are not providing. Never let a macro make this decision — it is a judgment about who is managing the patient, and no macro has that information.

"Closed treatment" = the physician did not open it. It is not a statement about whether the fracture was compound. "With manipulation" = the fracture was reduced, documented.

Casting: application included in global fracture care · the supply is separately reportable either way (HCPCS Q codes).

Arthroscopy — and Account 31-2245

Surgical arthroscopy ALWAYS includes diagnostic arthroscopy.

Line 3 — 29822 with modifier 59 from a macro, against a note documenting debridement of the repaired structures.

   42 claims  ×  $612.40  =  $25,720.80

Eleven of the forty-two were probably defensible. All forty-two were repaid.

THE DEFENSE IS CONTEMPORANEOUS DOCUMENTATION, AND IT CANNOT BE BUILT RETROACTIVELY.

One sentence — "debridement performed in the subacromial space, anatomically distinct from the repaired supraspinatus insertion" — was worth \$6,736.40 and takes four seconds to dictate.

A distinctness modifier near 100% on a code pairing is a self-report. Run the frequency report.

Key terms

surgical package · global period · pre/intra/postoperative components · staged procedure · lesion excision measurement · margins · simple / intermediate / complex repair · adjacent tissue transfer · debridement depth · Mohs micrographic surgery · joint size · knee compartments · separate procedure designation · fracture care · closed / open treatment · manipulation · casting and splinting supplies

Monday morning

You should be able to:

• Name what the package excludes, and check whether your practice bills the decision-for-surgery visit.
• Look up a global period instead of guessing at one.
• Read an operative note body-first and query when the heading disagrees.
• Do the measurement arithmetic out loud, and never touch a pathology report for it.
• Add repairs within a classification and grouping, and know that groupings move.
• Make the fracture-care decision on who is managing the patient.
• Run a modifier frequency report by code pairing.

The Encounter — 20610's 000-day global.

Included: the immediate pre-procedure evaluation after the decision to inject, positioning, consent, the lidocaine, the injection, the dressing, post-procedure instructions. And there are no postoperative days at all.

Not included: the significant, separately identifiable E/M (line 1, modifier 25) and the drug itself (line 3, J1030 — a supply, not a service).

Which settles two questions: 20610 is 000 → minor → modifier 25, not 57. And the lidocaine is not on the claim because local anesthesia is inside the package.

And why 20610 rather than 20611: the note says "No imaging guidance used." Chapter 13 called that a documented negative; this is what it buys. Three such clauses in one note — no imaging guidance, no aspirate obtained, no known injury — close three separate questions that would otherwise each require a query.