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Official Description

Radical resection of tumor; innominate bone, total

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Radical resection of a tumor, specifically the innominate bone, is a surgical procedure primarily indicated for the removal of malignant neoplasms. However, it may also be necessary for benign tumors or those of indeterminate nature. The procedure begins with the creation of a skin incision directly over the tumor site, or alternatively, a skin flap may be elevated to provide access. Once the incision is made, the surgeon meticulously dissects the overlying tissue to expose the tumor. The entire innominate bone is then resected, which involves removing the tumor en bloc, meaning the tumor is excised along with a wide margin of surrounding healthy tissue to ensure complete removal. This radical approach is crucial as it encompasses the excision of all involved soft tissues, which can include muscles, tendons, fat, blood vessels, lymph vessels, nerves, and any tissues surrounding the joints that may be affected by the tumor. To confirm that the surgical margins are free of tumor cells, a separately reportable frozen section may be performed during the procedure. If any margins are found to contain malignancy, additional tissue will be excised until all margins are confirmed to be clear of tumor cells. Post-surgery, drains may be placed as necessary to manage fluid accumulation, and the surgical wound is typically closed in layers. In some cases, separately reportable reconstructive procedures may be performed to restore the area after the radical resection.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

Radical resection of the innominate bone is indicated for the following conditions:

  • Malignant Neoplasm The primary indication for this procedure is the presence of a malignant tumor located in the innominate bone, necessitating complete removal to prevent further spread of cancer.
  • Benign Tumors In certain cases, benign tumors that pose a risk of complications or have the potential for malignant transformation may also require radical resection.
  • Indeterminate Tumors Tumors of indeterminate nature, where the characteristics of the tumor are unclear, may necessitate radical resection to ensure comprehensive treatment and evaluation.

2. Procedure

The procedure for radical resection of the innominate bone involves several critical steps:

  • Step 1: Incision The surgical process begins with the creation of a skin incision over the site of the bone tumor. In some cases, a skin flap may be elevated to provide better access to the tumor site, depending on the tumor's location and size.
  • Step 2: Dissection Following the incision, the surgeon carefully dissects the overlying tissue to expose the tumor. This step is crucial for visualizing the tumor and assessing its extent, ensuring that all involved tissues can be adequately addressed during resection.
  • Step 3: Resection of the Innominate Bone The total innominate bone is then resected. This involves removing the tumor en bloc, which means the tumor is excised along with a wide margin of surrounding healthy tissue. This approach is essential to minimize the risk of residual tumor cells being left behind.
  • Step 4: Excision of Involved Soft Tissue Radical resection includes the excision of all involved soft tissues, which may encompass muscles, tendons, fat, blood vessels, lymph vessels, nerves, and any tissues surrounding the joints that are affected by the tumor. This comprehensive removal is vital for ensuring complete tumor clearance.
  • Step 5: Frozen Section Analysis A separately reportable frozen section may be performed during the procedure to evaluate the surgical margins. This analysis helps determine if any tumor cells remain at the margins of the excised tissue.
  • Step 6: Additional Tissue Removal If the frozen section analysis indicates that the margins are not free of tumor cells, additional tissue will be excised until all margins are confirmed to be clear of malignancy.
  • Step 7: Drain Placement After the tumor and surrounding tissues have been removed, drains may be placed as needed to manage any fluid accumulation in the surgical site, which can help prevent complications such as seromas or infections.
  • Step 8: Wound Closure The surgical wound is typically closed in layers to promote proper healing. In some cases, separately reportable reconstructive procedures may be performed to restore the area after the radical resection, depending on the extent of the surgery and the patient's needs.

3. Post-Procedure

Post-procedure care following a radical resection of the innominate bone involves monitoring for complications and ensuring proper recovery. Patients may require pain management and close observation for any signs of infection or complications related to the surgical site. The placement of drains will be monitored, and they may be removed once fluid accumulation is deemed minimal. Rehabilitation may be necessary to restore function and mobility, particularly if significant soft tissue or bone structures were involved in the resection. Follow-up appointments will be essential to assess healing and to conduct any necessary further evaluations, including imaging studies to ensure that there is no recurrence of the tumor.

Short Descr RESECT HIP TUM W/INNOM BONE
Medium Descr RADICAL RESCTION TUMOR INNOMINATE BONE TOTAL
Long Descr Radical resection of tumor; innominate bone, total
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) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 2 - Payment restriction for assistants at surgery does not apply 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 Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 142 - Partial excision bone

This is a primary code that can be used with these additional add-on codes.

20932 Add-on Code MPFS Status: Active Code APC N ASC N1 Allograft, includes templating, cutting, placement and internal fixation, when performed; osteoarticular, including articular surface and contiguous bone (List separately in addition to code for primary procedure)
20933 Add-on Code MPFS Status: Active Code APC N ASC N1 Allograft, includes templating, cutting, placement and internal fixation, when performed; hemicortical intercalary, partial (ie, hemicylindrical) (List separately in addition to code for primary procedure)
20934 Add-on Code MPFS Status: Active Code APC N ASC N1 Allograft, includes templating, cutting, placement and internal fixation, when performed; intercalary, complete (ie, cylindrical) (List separately in addition to code for primary procedure)
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
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Notes
2010-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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