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Official Description

Excision, interdigital (Morton) neuroma, single, each

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

An interdigital neuroma of the foot, commonly known as Morton's neuroma, is a benign growth of nerve tissue that typically develops between the third and fourth toes, specifically in the third interspace. This condition is characterized by pain, tingling, or numbness in the affected area, often exacerbated by activities that put pressure on the foot. The excision of a Morton's neuroma involves the surgical removal of this nerve mass to alleviate symptoms and improve foot function. The procedure can be performed through either a dorsal (top) or plantar (bottom) incision, allowing the surgeon to access the neuroma effectively. During the surgery, the surgeon carefully dissects the overlying tissue to expose the neuroma, and may also cut the deep metatarsal ligament to relieve pressure on the nerve. Once the neuroma is excised, the incisions are closed in layers to promote proper healing. The CPT® code 28080 is used to report the excision of each neuroma performed during the procedure.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The excision of an interdigital (Morton) neuroma is indicated for patients experiencing significant pain, discomfort, or functional impairment due to the presence of the neuroma. The following conditions may warrant this surgical intervention:

  • Severe Pain Persistent pain in the forefoot that does not respond to conservative treatments such as orthotics, padding, or anti-inflammatory medications.
  • Numbness or Tingling Symptoms of numbness or tingling in the toes that interfere with daily activities.
  • Functional Limitations Difficulty in walking or participating in physical activities due to the discomfort caused by the neuroma.

2. Procedure

The procedure for excising a Morton's neuroma involves several key steps, each critical to the successful removal of the neuroma while minimizing damage to surrounding tissues.

  • Step 1: Anesthesia The procedure begins with the administration of local anesthesia to numb the area around the neuroma, ensuring the patient remains comfortable throughout the surgery.
  • Step 2: Incision A surgical incision is made either on the dorsal (top) or plantar (bottom) aspect of the foot, depending on the surgeon's preference and the specific location of the neuroma.
  • Step 3: Dissection The surgeon carefully dissects the overlying tissue to expose the neuroma. This step requires precision to avoid damaging surrounding nerves and blood vessels.
  • Step 4: Ligament Release If necessary, the deep metatarsal ligament may be cut to relieve pressure on the underlying nerve, which can help alleviate symptoms associated with the neuroma.
  • Step 5: Excision The neuroma is then excised from the surrounding tissue. This involves removing the entire mass of nerve tissue to prevent recurrence of symptoms.
  • Step 6: Closure After the neuroma is removed, the incision is closed in layers. This layered closure technique helps to promote optimal healing and reduces the risk of complications.

3. Post-Procedure

Following the excision of a Morton's neuroma, patients can expect a recovery period that may involve some swelling and discomfort in the surgical area. Post-procedure care typically includes keeping the foot elevated, applying ice to reduce swelling, and taking prescribed pain medications as needed. Patients are usually advised to avoid putting weight on the affected foot for a specified period, which may vary based on the surgeon's recommendations. Follow-up appointments are essential to monitor healing and assess the need for any additional interventions. Full recovery may take several weeks, during which patients should gradually resume normal activities as tolerated.

Short Descr REMOVAL OF FOOT LESION
Medium Descr EXCISION INTERDIGITAL MORTON NEUROMA SINGLE EACH
Long Descr Excision, interdigital (Morton) neuroma, single, each
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) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
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 3
CCS Clinical Classification 9 - Other OR therapeutic nervous system procedures
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left side of the body)
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.
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.)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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).
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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
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).
AG Primary physician
CR Catastrophe/disaster related
F1 Left hand, second digit
F6 Right hand, second digit
F7 Right hand, third digit
GA Waiver of liability statement issued as required by payer policy, individual case
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
KX Requirements specified in the medical policy have been met
SG Ambulatory surgical center (asc) facility service
T1 Left foot, second digit
T2 Left foot, third digit
T3 Left foot, fourth digit
T4 Left foot, fifth digit
T5 Right foot, great toe
T6 Right foot, second digit
T7 Right foot, third digit
T8 Right foot, fourth digit
TA Left foot, great toe
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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Pre-1990 Added Code added.
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