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Official Description

Excision or curettage of bone cyst or benign tumor, humerus;

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 24110 refers to the excision or curettage of a bone cyst or benign tumor located in the humerus, which is the long bone of the upper arm. A bone cyst is defined as a fluid-filled space within the bone, and it can manifest in various forms. One of the most common types is the unicameral or simple bone cyst, which is generally considered a benign lesion. Another type, though less common, is the aneurysmal bone cyst, characterized by vascular tissue that surrounds a blood-filled cystic lesion. In addition to cysts, there are several types of benign bone tumors that may require excision, including giant cell tumors, chondromyxoid fibromas, and enchondromas. The procedure associated with CPT® Code 24110 involves making an incision in the skin over the lesion site, which can be located in the humeral shaft or the distal end of the humerus. Following the incision, the soft tissues are carefully dissected to expose the lesion. If a cystic lesion is identified, the surgeon incises the bone to create a window, allowing access to the cyst. The fluid within the cyst is then aspirated and sent for laboratory analysis, which is reportable separately. A curette is subsequently inserted through the bone window to completely remove the lining of the cystic cavity via curettage. In cases where benign tumors are present, the procedure may involve excising the tumor along with a margin of surrounding healthy bone, ensuring complete removal of the lesion. This procedure is critical for addressing both bone cysts and benign tumors in the humerus, facilitating further treatment or recovery as necessary.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 24110 is indicated for the treatment of specific conditions affecting the humerus. These include:

  • Bone Cysts - Fluid-filled spaces within the bone that may require intervention due to size, symptoms, or risk of complications.
  • Benign Tumors - Non-cancerous growths in the bone, such as giant cell tumors, chondromyxoid fibromas, and enchondromas, that may necessitate excision to alleviate symptoms or prevent further issues.

2. Procedure

The procedure for CPT® Code 24110 involves several critical steps to ensure the effective excision or curettage of the bone cyst or benign tumor:

  • Step 1: Incision - The surgeon begins by making an incision in the skin directly over the site of the lesion located in the humeral shaft or distal humerus. This incision allows access to the underlying structures.
  • Step 2: Dissection - Following the incision, the soft tissues surrounding the lesion are carefully dissected to expose the lesion fully. This step is crucial for visualizing the cyst or tumor and planning the subsequent steps.
  • Step 3: Bone Incision and Cyst Access - If a cystic lesion is present, the surgeon incises the bone to create a bone window. This window provides access to the cyst, allowing for the next steps in the procedure.
  • Step 4: Aspiration - The fluid within the cyst is aspirated through the bone window. This fluid is then sent to the laboratory for analysis, which is reportable separately, ensuring that any necessary diagnostic information is obtained.
  • Step 5: Curettage - A curette is inserted through the bone window to remove the lining of the cystic cavity completely. This step is essential for ensuring that the cyst does not recur.
  • Step 6: Excision of Benign Tumors - In cases where benign tumors are present, the procedure may involve excising the tumor along with a margin of surrounding healthy bone. This excision is performed to ensure complete removal of the tumor and minimize the risk of recurrence.

3. Post-Procedure

After the procedure associated with CPT® Code 24110, post-operative care is essential for optimal recovery. Patients may be monitored for any signs of complications, such as infection or excessive bleeding. Pain management strategies will be implemented to ensure patient comfort. The expected recovery period may vary depending on the extent of the procedure and the individual patient's health status. Follow-up appointments will be necessary to assess healing and to determine if any further treatment is required. Additionally, patients may need to avoid certain activities that could stress the surgical site during the initial recovery phase.

Short Descr EXC/CURTG B1 CST/B9 TUM HUM
Medium Descr EXCISION/CURTG BONE CYST/BENIGN TUMOR HUMERUS
Long Descr Excision or curettage of bone cyst or benign tumor, humerus;
Status Code Active Code
Global Days 090 - Major Surgery
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P5B - Ambulatory procedures - musculoskeletal
MUE 1
CCS Clinical Classification 142 - Partial excision bone
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
56 Preoperative management only: when 1 physician or other qualified health care professional performed the preoperative care and evaluation and another performed the surgical procedure, the preoperative component may be identified by adding modifier 56 to the usual procedure number.
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
GW Service not related to the hospice patient's terminal condition
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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Action
Notes
2023-01-01 Note Short description changed.
2010-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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