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Official Description

Partial excision (craterization, saucerization, or diaphysectomy) bone (eg, osteomyelitis), clavicle

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 23180 involves a partial excision of bone, specifically targeting the clavicle to address osteomyelitis, which is an infection of the bone. This surgical intervention may also be referred to by terms such as craterization, saucerization, or diaphysectomy. Craterization and saucerization are techniques that focus on removing infected and necrotic bone tissue to create a shallow depression on the bone surface, facilitating drainage from the infected area. In contrast, diaphysectomy pertains to the removal of the infected segment of the shaft of a long bone. The procedure begins with an incision through the skin and soft tissue over the osteomyelitis site, allowing access to the affected area. The surgeon meticulously resects any soft tissue sinus tracts and devitalized soft tissue to expose the necrotic and infected bone. The surgical approach includes creating a series of drill holes in the compromised bone, followed by excavation of the bone between these holes to form an oval window using an osteotome. The extent of bone removal is determined by the severity of the infection. Additionally, a curette may be employed to eliminate any devitalized tissue from the medullary canal. The debridement process continues until punctate bleeding is observed on the exposed bony surface, indicating that healthy tissue has been reached. Once all infected and necrotic tissue has been thoroughly removed, the surgical site is irrigated with sterile saline or an antibiotic solution to reduce the risk of further infection. Finally, the wound is loosely closed, and a drain is placed to facilitate fluid drainage post-operatively.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 23180 is indicated for the treatment of osteomyelitis affecting the clavicle. Osteomyelitis is characterized by the infection of bone tissue, which can lead to necrosis and the formation of abscesses. The following conditions may warrant this surgical intervention:

  • Osteomyelitis of the clavicle - A bone infection that necessitates the removal of infected and necrotic bone tissue to prevent further complications.

2. Procedure

The procedure for CPT® Code 23180 involves several critical steps to ensure effective treatment of osteomyelitis in the clavicle. Each step is designed to address the infection while preserving as much healthy bone as possible:

  • Step 1: Incision and Exposure - The surgeon begins by making an incision in the skin over the site of the osteomyelitis. This incision is carefully extended through the soft tissue to gain access to the underlying bone. The goal is to expose the area affected by the infection while minimizing damage to surrounding tissues.
  • Step 2: Resection of Soft Tissue - Once the bone is exposed, any soft tissue sinus tracts and devitalized soft tissue are resected. This step is crucial for eliminating any infected tissue that could hinder the healing process and for ensuring a clear view of the necrotic bone.
  • Step 3: Bone Preparation - After the necrotic and infected bone is exposed, the surgeon creates a series of drill holes in the affected area. These holes are strategically placed to facilitate the removal of the compromised bone. The bone between the drill holes is then excavated using an osteotome, forming an oval window in the bone.
  • Step 4: Debridement - The extent of bone removal is determined by the severity of the infection. A curette may be utilized to remove any remaining devitalized tissue from the medullary canal. This thorough debridement continues until punctate bleeding is observed on the exposed bony surface, indicating that healthy bone has been reached.
  • Step 5: Irrigation and Closure - Once all infected and necrotic tissue has been removed, the surgical site is copiously irrigated with sterile saline or an antibiotic solution. This irrigation helps to cleanse the area and reduce the risk of post-operative infection. Finally, the surgical wound is loosely closed, and a drain is placed to allow for the drainage of any excess fluid that may accumulate post-operatively.

3. Post-Procedure

After the completion of the procedure, patients can expect a recovery period that may involve monitoring for signs of infection and managing any post-operative pain. The placement of a drain is intended to facilitate the removal of fluid from the surgical site, which can help prevent complications such as seroma or hematoma formation. Follow-up appointments will be necessary to assess the healing process and to ensure that the infection has been adequately addressed. Patients may also receive instructions regarding wound care and activity restrictions to promote optimal recovery.

Short Descr REMOVE COLLAR BONE LESION
Medium Descr PARTIAL EXCISION BONE CLAVICLE
Long Descr Partial excision (craterization, saucerization, or diaphysectomy) bone (eg, osteomyelitis), clavicle
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

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

20700 Add-on Code MPFS Status: Active Code APC N ASC N1 Manual preparation and insertion of drug-delivery device(s), deep (eg, subfascial) (List separately in addition to code for primary procedure)
20702 Add-on Code MPFS Status: Active Code APC N Manual preparation and insertion of drug-delivery device(s), intramedullary (List separately in addition to code for primary procedure)
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.
RT Right side (used to identify procedures performed on the right side of the body)
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
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).
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.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure 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
LT Left side (used to identify procedures performed on the left side of the body)
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