On this page · 5 sections
Most of the time a CPT code describes the surgery exactly: the organ, what was done, and how the surgeon got there. Sometimes nothing in the book matches. A coder who picks the "closest" code then reports a service that didn't happen, which is a compliance problem even if the payment looks right.
This lesson covers how to tell when a code really fits, what to do when none does, and one area where this comes up often: pancreas surgery.
Part 1 of 5
The approach picks the code
In an open procedure the surgeon cuts an incision big enough to see and work directly. In a laparoscopic procedure the surgeon makes a few small ports, fills the abdomen with gas, and works through a camera and long instruments.
CPT keeps the two apart. Laparoscopic codes sit in their own Laparoscopy subsections, and each one starts with "Laparoscopy, surgical". Read the operative note for the approach before you look anything up.
| Inguinal hernia repair | Code |
|---|---|
| Laparoscopic, initial hernia | 49650 |
| Laparoscopic, recurrent hernia | 49651 |
| Open, initial, age 5 or older, reducible | 49505 |
| Open, initial, age 5 or older, incarcerated or strangulated | 49507 |
| Open, recurrent, reducible | 49520 |
Mesh placed during an inguinal hernia repair is part of the repair; there's no separate mesh code.
Part 2 of 5
When no code fits: unlisted procedures
Each section of CPT ends with unlisted codes, usually ending in 99, one per body system and often one per approach. For example:
| Unlisted code | Use for |
|---|---|
| 17999 | Skin, mucous membrane and subcutaneous tissue |
| 38589 | Laparoscopy, lymphatic system |
| 48999 | Pancreas (any approach) |
| 49329 | Laparoscopy, abdomen, peritoneum and omentum |
| 49999 | Abdomen, peritoneum and omentum (open) |
Concept map
No CPT code matches
Work through these in order
1. Look again
- Check the index under the procedure, organ and approach
- Read the subsection notes: a code may include what you thought was missing
2. Category III
0xxxT- Newer technology has temporary Category III codes
- If one describes the procedure, CPT says to use it, not an unlisted code
3. Unlisted code
…99- Same body system as the procedure
- Laparoscopic work: the unlisted laparoscopy code where one exists
- Send the operative note and a comparison code
What the payer needs
An unlisted code has no fixed value, so the payer prices it by hand from what you send. A clean unlisted claim includes:
- The operative note, with the procedure described in plain terms and why it was needed.
- A comparison code: a listed procedure with similar time, work and risk.
- A suggested fee, based on that comparison code, with a short note on how this case was more or less work.
- The claim description (the narrative field on the claim) naming what was done, for example "laparoscopic partial omentectomy".
Part 3 of 5
Two laparoscopic procedures in one session
A surgeon working laparoscopically may treat two separate problems through the same ports. Both can be reported when the note documents a separate indication and separate work for each.
- A separate incision isn't required. Separate ports are the norm in laparoscopy; what matters is that the second procedure was a distinct service.
- Check NCCI for the pair of codes. If there's no edit, no modifier is needed. If there is an edit that allows a modifier, use 59 or XS only when the second procedure was on a separate organ or site.
- Expect a payment reduction. Under the multiple procedure rule the highest-valued procedure is paid in full and the others at a reduced rate (50% for Medicare). Some payers still ask for modifier 51 on the second code; most no longer do.
Example: a laparoscopic gallbladder removal, and in the same session the surgeon removes part of the omentum because of a suspicious nodule. The gallbladder is 47562. There's no laparoscopic omentectomy code, so the second procedure is 49329, the unlisted laparoscopy code for the omentum.
Part 4 of 5
Pancreas resections: distal or Whipple
The pancreas lies across the back of the abdomen: the head sits in the curve of the duodenum, and the body and tail run toward the spleen. Where the tumor sits decides the operation.
Picture it · what each pancreatectomy removes
Distal pancreatectomy
481404814548146
Whipple (classic)
4815048152
Pylorus-preserving Whipple
4815348154
| Code | Operation | Key detail |
|---|---|---|
| 48140 | Distal subtotal pancreatectomy | No pancreaticojejunostomy; with or without splenectomy |
| 48145 | Distal subtotal pancreatectomy | With pancreaticojejunostomy |
| 48146 | Distal near-total pancreatectomy | Duodenum preserved |
| 48150 | Whipple (proximal pancreatectomy with duodenum and part of the stomach) | With pancreatojejunostomy |
| 48152 | Whipple | Without pancreatojejunostomy |
| 48153 | Pylorus-preserving Whipple | With pancreatojejunostomy |
| 48154 | Pylorus-preserving Whipple | Without pancreatojejunostomy |
| 48155 | Total pancreatectomy | Whole pancreas |
Laparoscopic distal pancreatectomy: 48999
Distal pancreatectomy is now often done laparoscopically, sometimes keeping the spleen. Every code above describes an open operation, and there's no laparoscopic pancreatectomy code. So a laparoscopic distal pancreatectomy is reported with 48999, the unlisted pancreas code. Use 48140 as the comparison code, and note in the description any extra work, such as preserving the splenic vessels to keep the spleen.
Part 5 of 5
Practice cases
Case 1 · HerniaLaparoscopic repair, first-time herniaOpen caseClose
A 52-year-old has a right inguinal hernia that has never been repaired. Through three ports, the surgeon reduces the hernia and covers the defect with mesh.
Your turn: code this case
Case 2 · HerniaOpen repair, first-time herniaOpen caseClose
A 40-year-old has a reducible left inguinal hernia, not repaired before. The surgeon makes a groin incision and repairs it with mesh.
Your turn: code this case
Case 3 · PancreasOpen distal pancreatectomy with the spleenOpen caseClose
Through an open incision, the surgeon removes the body and tail of the pancreas together with the spleen. The cut end of the pancreas is stapled closed; nothing is joined to the bowel.
Your turn: code this case
Case 4 · PancreasWhipple that keeps the stomachOpen caseClose
For a tumor in the head of the pancreas, the surgeon removes the head and most of the duodenum but keeps the whole stomach and pylorus, then joins the pancreas, bile duct and duodenum to the jejunum.
Your turn: code this case
Case 5 · UnlistedLaparoscopic distal pancreatectomy, spleen keptOpen caseClose
Through five ports, the surgeon removes the tail of the pancreas for a small tumor, carefully keeping the splenic artery and vein so the spleen can stay.
Your turn: code this case
Case 6 · Two proceduresGallbladder, plus a nodule on the omentumOpen caseClose
During a laparoscopic gallbladder removal for gallstones, the surgeon sees a firm nodule on the omentum and removes that part of the omentum through the same ports for pathology.
Your turn: code this case
End of the chapter: check what you remember
- The approach is part of the code: an open code never describes a laparoscopic procedure
- No code fits? Check Category III first, then use the unlisted code for that body system and approach
- Two laparoscopic procedures in one session can both be reported; a separate incision isn't required
- Distal pancreatectomy (48140–48146) vs. Whipple (48150–48154), and why a laparoscopic distal resection is 48999