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Official Description

Gastrocnemius recession (eg, Strayer procedure)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Gastrocnemius recession, also known as the Strayer procedure, is a surgical intervention aimed at alleviating tightness in the gastrocnemius muscle, which can lead to equinus contracture and associated discomfort in the ankle and foot. Equinus contracture is a condition where the ankle cannot be flexed beyond a neutral position, defined as a 90-degree angle between the leg and foot. This limitation in movement often results in compensatory mechanisms, particularly increased motion in the transverse tarsal joint of the midfoot, which can lead to various painful conditions such as plantar fasciitis, acquired flatfoot deformity, and metatarsalgia. The procedure involves making a longitudinal incision on the posteromedial aspect of the mid-calf to access the gastrocnemius muscle. Through careful dissection of the surrounding soft tissues, the muscle is exposed, allowing for the necessary surgical modifications to relieve tension. The procedure may also involve a Z-shaped incision in the Achilles tendon, which facilitates lengthening by enabling the tendon fibers to separate as the ankle is flexed. Post-surgery, the ankle is typically immobilized using a cast, splint, or a CAM-type walking boot to ensure proper healing and maintain the ankle in the desired position.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The gastrocnemius recession procedure is indicated for patients experiencing tightness in the gastrocnemius muscle that leads to equinus contracture and resultant ankle and foot pain. The following conditions may warrant this surgical intervention:

  • Equinus Contracture - A condition characterized by the inability to move the ankle past a neutral position, resulting in limited dorsiflexion.
  • Plantar Fasciitis - Inflammation of the plantar fascia that can occur due to compensatory movements from equinus contracture.
  • Acquired Flatfoot Deformity - A condition that may develop as a result of altered biomechanics due to tightness in the gastrocnemius muscle.
  • Metatarsalgia - Pain in the ball of the foot that can arise from abnormal foot mechanics associated with equinus contracture.

2. Procedure

The gastrocnemius recession procedure involves several key steps to effectively address the tightness in the gastrocnemius muscle and alleviate associated symptoms. The following procedural steps are performed:

  • Step 1: Incision - A longitudinal posteromedial incision is made over the mid-calf region to provide access to the gastrocnemius muscle. This incision allows the surgeon to carefully dissect the soft tissues surrounding the muscle.
  • Step 2: Muscle Exposure - Once the incision is made, the surgeon meticulously dissects the soft tissues to expose the gastrocnemius muscle. This step is crucial for visualizing the muscle and preparing it for the recession procedure.
  • Step 3: Achilles Tendon Modification - A Z-shaped incision is created in the Achilles tendon. This modification is essential as it allows for the lengthening of the tendon by enabling the tendon fibers to slide apart when the ankle is flexed, thereby reducing tension.
  • Step 4: Tendon Positioning - After the lengthening, the Achilles tendon may either be left to heal in the lengthened position or sutured to the underlying tissues while in this position, depending on the surgeon's preference and the specific case.
  • Step 5: Immobilization - Following the completion of the procedure, the ankle is immobilized using a cast, splint, or CAM-type walking boot. This immobilization is critical to maintain the ankle in the desired position during the healing process.

3. Post-Procedure

Post-procedure care is essential for optimal recovery following gastrocnemius recession. Patients are typically advised to keep the ankle immobilized in a cast, splint, or CAM-type walking boot to ensure that the tendon heals properly in the lengthened position. The duration of immobilization may vary based on the surgeon's assessment and the individual patient's healing progress. Patients may also be instructed to engage in physical therapy to gradually restore range of motion and strength to the ankle once the initial healing phase is complete. Regular follow-up appointments are necessary to monitor the healing process and address any complications that may arise.

Short Descr REVISION OF CALF TENDON
Medium Descr GASTROCNEMIUS RECESSION
Long Descr Gastrocnemius recession (eg, Strayer procedure)
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) 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 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) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
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).
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)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
SG Ambulatory surgical center (asc) facility service
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).
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).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
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.)
81 Minimum assistant surgeon: minimum surgical assistant services are identified by adding modifier 81 to the usual procedure number.
AG Primary physician
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
ET Emergency services
GW Service not related to the hospice patient's terminal condition
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
T5 Right foot, great toe
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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