-62

⚕️ Modifier -62: Two Surgeons (Co-surgeons)

Short Definition

Modifier -62 indicates two surgeons working together as primary co-surgeons performing distinct parts of a single reportable procedure during the same operative session

Long Definition

CPT modifier -62 (Two Surgeons) is appended to a surgical procedure code when two surgeons, each with different expertise or specialties, work together as primary surgeons performing distinct, essential portions of a single surgical procedure during the same operative session, with each surgeon performing a specific component of the procedure that requires their particular skill set, where both surgeons are considered primary surgeons (not surgeon and assistant), and each is independently responsible for their distinct portion of the operation. This modifier is used when the complexity, nature, or extent of the procedure requires the combined skills of two surgeons, typically from different specialties, working simultaneously or sequentially during the same operative encounter to accomplish what a single surgeon could not reasonably perform alone or as safely.

The use of modifier -62 indicates that both surgeons are performing primary surgical work of equal or near-equal complexity and responsibility, distinguishing this arrangement from an assistant surgeon relationship where one surgeon performs the primary work and another assists (which would use modifier -80 instead). Common scenarios requiring co-surgeons include: complex spinal surgeries where an orthopedic spine surgeon and neurosurgeon collaborate (one approaches from anterior, other from posterior); cardiothoracic procedures involving both cardiac and thoracic components; complex oncologic resections requiring surgical oncologist and reconstructive surgeon; major vascular procedures requiring vascular surgeon and another specialist; and intricate neurosurgical procedures requiring expertise from multiple neurosurgical subspecialties. Payment structure under Medicare and most commercial payers: each co-surgeon receives 62.5% of the allowable fee for the procedure (totaling 125% combined), reflecting that both are performing primary surgical work but sharing the overall procedure.

Critical documentation requirements mandate that each surgeon must dictate a separate, detailed operative report describing their specific portion of the procedure, the medical necessity for co-surgery, and how their role was distinct from their co-surgeon; generic or duplicative operative reports may result in claim denial. Medical necessity must be clearly established: payers require documentation explaining why two primary surgeons were required rather than one surgeon with an assistant, emphasizing procedure complexity, patient risk factors, anatomical challenges, or need for simultaneous dual-specialty expertise. Both surgeons must bill the same CPT procedure code, each appending modifier -62, and should bill on the same date of service; claims are typically linked during payer processing to verify the co-surgery arrangement. Pre-authorization is often required by payers before surgery, particularly for elective procedures, as co-surgeon arrangements increase total payment to 125% of the standard fee; emergency surgeries may be performed without pre-authorization with documentation explaining urgency.

Not all CPT codes are eligible for modifier -62: Medicare maintains a list of procedures that support co-surgery (indicator “2” in the Medicare Physician Fee Schedule), procedures that never allow co-surgery (indicator “0”), and procedures where co-surgery decision is at carrier discretion (indicator “1”); surgeons should verify code eligibility before planning co-surgery. Modifier -62 differs from modifier -66 (Surgical Team): modifier -62 involves two primary surgeons performing distinct parts of one procedure, while modifier -66 involves a team of three or more physicians working simultaneously on a highly complex procedure with special team payment rules; modifier -62 is more common and applies to broader range of procedures. Proper use prevents claim denials: common denial reasons include inadequate documentation of medical necessity, duplicate operative reports suggesting assistant role rather than co-surgery, use on procedures not supporting co-surgery per payer policy, lack of distinct descriptions of each surgeon’s role, or failure to obtain pre-authorization when required.

Compliance considerations require that the co-surgery arrangement be legitimate based on procedure complexity rather than convenience or practice-building; fraudulent use of modifier -62 when surgeon relationship is actually surgeon-assistant can result in False Claims Act violations, overpayment recovery, and potential fraud investigations. Clinical scenarios appropriately using modifier -62: complex spinal fusion with anterior lumbar interbody fusion (ALIF) requiring general surgeon or vascular surgeon for anterior approach and orthopedic/neurosurgeon for spinal work; craniofacial reconstruction requiring both plastic surgeon and neurosurgeon; complex oncologic resections with immediate reconstruction; major cardiovascular procedures combining different technical skills; and rare congenital anomaly repairs requiring multiple subspecialty expertise. The modifier should NOT be used when: one surgeon is merely assisting (use -80); procedure can reasonably be performed by one surgeon alone; surgeons are from same specialty performing routine portions of standard procedure; arrangement is primarily for training purposes; or surgeon performs only minor add-on procedures that should be separately coded.

Financial implications are significant: hospitals and surgery centers must credential both surgeons appropriately; anesthesia time may be longer affecting facility costs; operating room staffing may need augmentation; and total surgical fees are 25% higher than single-surgeon approach, requiring medical necessity justification to payers and potentially to patients for out-of-pocket costs. From a quality and safety perspective, appropriate co-surgery can improve patient outcomes by bringing dual expertise to complex cases, reducing operative time compared to sequential single-surgeon approaches, decreasing complication rates in high-risk procedures, and providing real-time collaboration on intraoperative decision-making; however, inappropriate overuse increases costs without patient benefit.

Global surgical package implications: when modifier -62 is used, both surgeons share the global period, and both are responsible for their respective portions of post-operative care, typically dividing follow-up based on their surgical contributions; clear documentation of which surgeon manages what aspects of post-op care prevents confusion. Teaching settings: modifier -62 cannot be used between attending and resident (residents are trainees, not co-surgeons); however, two attendings from different specialties may appropriately use -62 even in teaching hospitals. Patient consent: surgical consent should document that two primary surgeons will participate, explaining the rationale and which surgeon performs what component, ensuring informed consent and transparency about increased surgical fees.

State medical board considerations: some states have specific regulations about co-surgery arrangements and fee-splitting; surgeons must ensure arrangements comply with state law and do not constitute improper fee-splitting. Record-keeping: both surgeons should maintain comprehensive records including pre-operative planning notes documenting why co-surgery needed, separate detailed operative reports, documentation of medical necessity, and post-operative care division agreements. Denial management: if claims denied, appeal should include both operative reports, detailed explanation of medical necessity, references to procedure complexity, patient risk factors, anatomical challenges, specialty-specific expertise required by each surgeon, and citations to medical literature supporting co-surgery approach for the specific procedure.

Commercial payers may have more restrictive policies than Medicare, potentially limiting eligible procedures or requiring higher medical necessity thresholds; surgeons should verify specific payer policies before surgery. Modifier -62 reflects modern surgical practice where increasing sub-specialization means complex procedures benefit from collaboration between experts in different domains, balancing increased cost with improved outcomes when appropriately applied to legitimately complex cases requiring dual primary surgical expertise.

Clinical Use Cases

Appropriate Use - When to Use Modifier -62:

1. Complex Spinal Surgery - Anterior/Posterior Approach:

• Scenario: Severe scoliosis requiring combined anterior and posterior spinal fusion
• Surgeon 1: General/vascular surgeon performs anterior approach (ALIF - anterior lumbar interbody fusion)
  • Abdominal exposure
  • Vascular mobilization
  • Anterior disc work
• Surgeon 2: Orthopedic spine surgeon/neurosurgeon performs posterior instrumentation
  • Posterior exposure
  • Pedicle screw placement
  • Rod placement and fusion
• Why Co-Surgery: Two distinct surgical approaches requiring different specialty expertise performed same operative session
• Billing: Both surgeons bill same spinal fusion code + modifier -62

2. Complex Oncologic Resection with Immediate Reconstruction:

• Scenario: Large sarcoma resection with complex reconstruction
• Surgeon 1: Surgical oncologist performs tumor resection
  • Wide local excision
  • Lymph node dissection
  • Margin assessment
• Surgeon 2: Plastic/reconstructive surgeon performs immediate reconstruction
  • Free flap harvest
  • Microvascular anastomosis
  • Defect closure
• Why Co-Surgery: Tumor expertise combined with reconstructive expertise, simultaneous work reduces ischemia time
• Billing: Both bill primary resection/reconstruction code + modifier -62

3. Craniofacial Surgery:

• Scenario: Complex craniofacial reconstruction for congenital anomaly
• Surgeon 1: Neurosurgeon performs intracranial component
  • Craniotomy
  • Dural work
  • Brain protection
• Surgeon 2: Plastic surgeon performs facial reconstruction
  • Orbital work
  • Midface advancement
  • Soft tissue reconstruction
• Why Co-Surgery: Requires both neurosurgical and craniofacial plastic surgery expertise
• Billing: Both bill craniofacial procedure code + modifier -62

4. Complex Cardiovascular Surgery:

• Scenario: Aortic aneurysm repair with coronary artery bypass
• Surgeon 1: Cardiothoracic surgeon performs cardiac portion
  • Coronary artery bypass grafts
  • Cardiopulmonary bypass management
• Surgeon 2: Vascular surgeon performs aortic repair
  • Aneurysm resection
  • Graft placement
• Why Co-Surgery: Requires both cardiac and vascular surgical subspecialty skills
• Billing: Both bill combined procedure code + modifier -62

5. Pelvic Exenteration with Reconstruction:

• Scenario: Recurrent rectal cancer requiring total pelvic exenteration
• Surgeon 1: Colorectal/surgical oncologist performs exenteration
  • Rectum removal
  • Bladder removal
  • Lymphadenectomy
• Surgeon 2: Urologic surgeon or plastic surgeon performs urinary/reconstruction
  • Urinary diversion
  • Perineal reconstruction
  • Ostomy creation
• Why Co-Surgery: Multi-organ resection requiring multiple specialty expertise
• Billing: Both bill exenteration code + modifier -62

Inappropriate Use - When NOT to Use Modifier -62:

1. Routine Assistant Role:

• Wrong: Orthopedic surgeon performing total hip replacement with general surgery colleague “assisting”
• Why Wrong: Assistant role should use modifier -80 (assistant surgeon), not -62
• Correct Modifier: -80 for assistant (if qualified)

2. Same-Specialty Routine Procedure:

• Wrong: Two general surgeons performing routine cholecystectomy together
• Why Wrong: Procedure does not require two primary surgeons; one could perform alone
• Correct Approach: One surgeon primary, other may assist with -80 if truly needed (rarely justified)

3. Training/Teaching:

• Wrong: Attending and resident billing as co-surgeons
• Why Wrong: Resident is trainee, not co-surgeon; teaching is expected part of academic practice
• Correct Approach: Only attending bills; resident does not bill

4. Sequential Unrelated Procedures:

• Wrong: ENT surgeon performs septoplasty, then plastic surgeon performs rhinoplasty same session, both bill -62
• Why Wrong: These are separate procedures that should be separately coded, not components of one procedure
• Correct Approach: Each surgeon bills their own procedure code without -62

5. Minor Add-On Procedures:

• Wrong: Neurosurgeon performs complex spine surgery, pain management physician places intrathecal pump, both bill primary procedure with -62
• Why Wrong: Pump placement is separate add-on procedure, not component of spine surgery
• Correct Approach: Each surgeon bills distinct procedure codes separately

Payment Structure

Medicare Payment (Modifier -62):

Standard Payment Formula:

• Each co-surgeon receives: 62.5% of the Medicare Physician Fee Schedule (MPFS) allowable amount
• Total payment: 125% of standard fee (62.5% + 62.5% = 125%)
• Example:
  • Procedure allowable fee: $10,000
  • Surgeon 1 payment: 6,250 (62.5%)
  • Surgeon 2 payment: 6,250 (62.5%)
  • Total paid: 12,500 (125% of standard)

Comparison to Other Modifiers:

Modifier	Role	Payment %	Total Payment
-62	Co-surgeon	62.5% each	125%
-80	Assistant surgeon	16%	116% (100% + 16%)
-81	Minimum assistant	16%	116%
-82	Assistant (no resident)	16%	116%
-AS	PA/NP/CNS assistant	Varies by payer	~100-116%
-66	Surgical team (3+)	Special calculation	Varies
None	Single surgeon	100%	100%

Why 125% Total:

• Reflects that two primary surgeons each performing significant work
• More expensive than single surgeon (100%) but less than two separate full fees (200%)
• Recognizes overlap in some portions (patient positioning, exposure, closure)

Commercial Payer Variations:

• Most follow Medicare model (62.5% each)
• Some payers may pay different percentages
• Some payers may limit eligible procedures more than Medicare
• Always verify specific payer policy

Documentation Requirements

Essential Documentation for Modifier -62:

1. Separate Operative Reports Required:

Each Surgeon Must Dictate Separate Report Including:

Surgeon 1 Operative Report Must Contain:

• Detailed description of surgeon 1’s specific work:
  • Exact portion performed
  • Technical details
  • Time spent
• Medical necessity for co-surgery:
  • Why two primary surgeons required
  • Complexity factors
  • Patient risk factors
• Description of co-surgeon’s distinct role:
  • What surgeon 2 performed
  • Why both specialties needed
  • How roles were complementary, not duplicative
• Time documentation:
  • When surgeon 1 began
  • Duration of surgeon 1’s work
  • Overlap periods if any

Example Language (Surgeon 1 - Vascular Surgeon in Spine Case): “I performed the anterior retroperitoneal approach to the L4-L5 disc space. This required careful dissection and mobilization of the left common iliac artery and vein, which were densely adherent to the anterior longitudinal ligament due to patient’s prior radiation therapy. The vascular anatomy was complex with variant iliolumbar vein requiring ligation. After achieving safe vascular exposure, I performed anterior discectomy and prepared endplates for interbody cage placement. My orthopedic spine surgery colleague, Dr. Smith, then placed the interbody cage and performed the posterior instrumented fusion, which was beyond my scope of practice as a vascular surgeon. The co-surgery was medically necessary given the complex vascular anatomy requiring vascular surgical expertise for safe exposure, combined with need for definitive spinal fusion requiring spine surgery expertise. Total operative time for my portion: 2 hours 15 minutes.”

Surgeon 2 Operative Report Must Contain:

• Detailed description of surgeon 2’s specific work
• Acknowledgment of co-surgeon’s contribution
• Why their specialty expertise required
• Distinct from surgeon 1’s work

Example Language (Surgeon 2 - Spine Surgeon in Same Case): “Following safe anterior exposure achieved by my vascular surgery colleague Dr. Jones, I performed placement of the structural interbody cage at L4-L5 with sizing, trialing, and cage insertion under fluoroscopy. The patient was then repositioned prone, and I performed posterior instrumented fusion L4-L5 including bilateral pedicle screw placement, rod contouring and placement, compression, and posterolateral bone grafting. The co-surgery approach was necessary because the patient’s prior radiation and complex vascular anatomy (variant iliolumbar vein) required vascular surgical expertise for safe anterior exposure, which is outside my scope as an orthopedic spine surgeon, while the definitive spinal instrumentation required my orthopedic spine surgery expertise. Total operative time for my portion: 3 hours 45 minutes.”

2. Pre-Operative Documentation:

Chart Notes Should Include:

• Pre-op planning documentation:
  • Why co-surgery planned
  • Discussion between surgeons
  • Patient complexity
• Consent documentation:
  • Patient informed two primary surgeons will participate
  • Roles explained
  • Potential increased cost discussed
• Medical necessity justification:
  • Complexity factors
  • Anatomic challenges
  • Risk factors
  • Specialty-specific expertise needed

3. Medical Necessity Statement:

Must Document Why Co-Surgery Required (Examples):

• “Two-surgeon approach medically necessary due to [specific anatomic complexity/patient factors]”
• “Combined expertise of [specialty 1] and [specialty 2] required for safe completion of procedure”
• “Simultaneous work by two primary surgeons reduces operative/ischemia time compared to sequential approach”
• “Patient’s [specific condition] requires subspecialty expertise from both surgeons”

4. What NOT to Do (Common Documentation Errors):

Avoid:

• Duplicate reports: Identical or nearly identical operative reports (suggests one was actually assistant, not co-surgeon)
• Vague descriptions: “Assisted with procedure” (use modifier -80, not -62)
• Generic statements: “Present throughout case” without describing distinct work
• Missing medical necessity: Failing to explain why co-surgery needed
• Assistant language: “Provided exposure and retraction” (assistant role, not co-surgeon)

Billing Instructions

How to Bill with Modifier -62:

Step 1: Both Surgeons Bill Same CPT Code

• Surgeon 1: CPT [procedure code]-62
• Surgeon 2: CPT [procedure code]-62
• Both must use exact same procedure code

Example:

• Procedure: Complex spinal fusion (CPT 22842)
• Surgeon 1 (Vascular): 22842-62
• Surgeon 2 (Orthopedic): 22842-62

Step 2: Same Date of Service

• Both claims must reflect same surgery date
• Payer will link claims

Step 3: Attach Operative Reports

• Each surgeon includes their operative report
• Reports must be distinct
• Medical necessity documented

Step 4: Diagnosis Codes

• Both surgeons use same primary diagnosis codes
• Reflects medical necessity

Step 5: Modifiers Sequence

• -62 takes priority
• Other modifiers may follow if applicable
• Example: 22842-62-RT (right side)

Claims Processing:

Payer Review:

1. Payer receives both claims with -62
2. Links claims together
3. Reviews for:
   • Same CPT code
   • Same date of service
   • Medical necessity documentation
   • Distinct operative reports
4. Pays each surgeon 62.5% if approved

Pre-Authorization:

• Many payers require pre-auth for elective co-surgery
• Submit: Both surgeons’ names, procedure planned, medical necessity
• Obtain authorization before surgery
• Emergency cases: document why pre-auth not obtained

Multiple Procedure Payment Reduction (MPPR):

• Does NOT typically apply to -62
• Each co-surgeon paid 62.5% of primary procedure fee
• No reduction for multiple procedures when using -62 appropriately

Medicare Guidelines

Medicare Physician Fee Schedule (MPFS) Co-Surgery Indicators:

Indicator “2” - Co-Surgery Supported:

• Procedure code supports use of modifier -62
• Documentation of medical necessity required
• Both surgeons paid 62.5%
• Examples: Complex spinal fusions, major oncologic resections, craniofacial procedures

Indicator “1” - Co-Surgery Carrier Discretion:

• Co-surgery decision made by local Medicare contractor
• Medical necessity review more stringent
• May require pre-authorization
• Examples: Some vascular procedures, certain orthopedic procedures

Indicator “0” - Co-Surgery Not Allowed:

• Procedure does NOT support modifier -62
• Claims will deny if -62 used
• Use alternative modifiers if assistance needed (-80, -AS)
• Examples: Most endoscopic procedures, minor procedures, routine surgeries

How to Check Indicator:

1. Look up CPT code in Medicare Physician Fee Schedule
2. Find “Co-Surgeons” column
3. Check indicator (0, 1, or 2)
4. Plan accordingly

Medicare Documentation Requirements:

• Both surgeons must document:
  • Medical necessity
  • Each surgeon’s distinct portion
  • Why expertise of both specialties required
  • Procedure complexity
• Generic documentation leads to denial
• May request additional documentation on review

Common Denial Reasons

Top Reasons Modifier -62 Claims Denied:

1. Procedure Code Does Not Support Co-Surgery:

• Issue: CPT code has indicator “0” (co-surgery not allowed)
• Prevention: Check MPFS before surgery
• Resolution: If already performed, submit documentation explaining unusual circumstances; may still deny

2. Inadequate Medical Necessity Documentation:

• Issue: Didn’t explain why two primary surgeons required
• Prevention: Detailed operative reports documenting necessity
• Resolution: Appeal with comprehensive medical necessity statement

3. Duplicate or Generic Operative Reports:

• Issue: Reports too similar, suggesting one surgeon was assistant
• Prevention: Each surgeon dictates distinct report describing their specific work
• Resolution: Submit detailed supplemental reports clarifying distinct roles

4. Lack of Pre-Authorization:

• Issue: Payer required pre-auth, not obtained
• Prevention: Check payer policy, obtain pre-auth for elective cases
• Resolution: Appeal with documentation of emergency or medical necessity

5. Same Specialty, Routine Procedure:

• Issue: Two surgeons from same specialty performing routine procedure that one could do alone
• Prevention: Only use -62 when truly medically necessary
• Resolution: Difficult to overturn; strong medical necessity justification required

6. One Surgeon Actually Performed Assistant Role:

• Issue: Description suggests one surgeon assisted rather than performed distinct primary work
• Prevention: True co-surgery only; use -80 if assistant role
• Resolution: May need to refund/adjust claim if assistant role confirmed

7. Claims Not Linked Properly:

• Issue: Payer didn’t link both surgeons’ claims, paid 100% to one, denied other
• Prevention: Ensure same date, same CPT code, both with -62
• Resolution: Contact payer, submit both claims together

8. Missing Documentation:

• Issue: Operative reports not attached
• Prevention: Submit reports with initial claim
• Resolution: Submit documentation promptly when requested

Appeal Process

If Modifier -62 Claim Denied:

Level 1 - Initial Appeal to Payer:

Include:

1. Both complete operative reports (distinct, detailed)
2. Medical necessity statement:
   • Procedure complexity
   • Patient risk factors
   • Anatomical challenges
   • Why two primary surgeons required
   • Specialty-specific expertise needed by each
3. Literature support:
   • Published articles supporting co-surgery approach
   • Practice guidelines recommending dual-surgeon approach
   • Outcome studies showing benefit
4. Medicare MPFS documentation:
   • Show procedure code supports co-surgery (indicator 2)
   • Reference Medicare payment policy
5. Pre-operative documentation:
   • Pre-op planning notes
   • Consultation notes
   • Imaging showing complexity
6. Cover letter summarizing:
   • Why co-surgery medically necessary
   • How each surgeon’s role was distinct
   • Why appeal should be approved

Level 2 - External Review:

• If initial appeal denied, request external review
• May involve independent medical review
• Provide all documentation from Level 1 plus any additional supporting information

Level 3 - Arbitration/Litigation:

• Rare for modifier -62 disputes
• Typically only for very high-dollar cases

Compliance and Fraud Prevention

Appropriate vs. Inappropriate Use:

Red Flags for Inappropriate -62 Use:

• Using -62 routinely for procedures that don’t require co-surgery
• Same specialty surgeons billing -62 on routine cases
• One surgeon’s operative report describes minimal work
• Pattern of always using same two surgeons with -62
• Co-surgery for convenience rather than medical necessity
• Using -62 to increase revenue without justification

Compliance Best Practices:

• Use -62 only when truly medically necessary
• Document medical necessity thoroughly
• Each surgeon must perform substantial primary work
• Consider: “Could one surgeon reasonably perform this alone?”
• If answer is yes, -62 not appropriate
• Ensure specialty expertise of both surgeons genuinely required

OIG/CMS Scrutiny:

• Co-surgery increases payments 25% above single-surgeon fee
• High-volume -62 use may trigger audit
• Must withstand scrutiny on medical necessity
• False Claims Act implications if fraudulent use

Self-Audit:

• Review your -62 cases periodically
• Are they all truly medically necessary?
• Is documentation adequate?
• Are you following payer policies?
• Consider compliance officer review

Comparison to Other Modifiers

Modifier -62 vs. Modifier -80 (Assistant Surgeon):

Feature	Modifier -62 (Co-Surgeon)	Modifier -80 (Assistant)
Role	Two primary surgeons	One primary, one assistant
Work performed	Each performs distinct primary surgical work	Assistant provides exposure, hemostasis, suturing
Payment	62.5% each (125% total)	Primary 100%, assistant 16% (116% total)
Specialties	Often different specialties	Can be same or different
Documentation	Both write full operative reports	Assistant may write brief note
Complexity	Complex procedures requiring dual expertise	Routine to complex, assistance level

When to Use -80 Instead of -62:

• Surgeon is truly assisting (holding retractors, suctioning, suturing)
• One surgeon performs bulk of procedure
• Assistant doesn’t perform distinct primary work
• Routine procedure where one surgeon is primary

Modifier -62 vs. Modifier -66 (Surgical Team):

Feature	Modifier -62 (Co-Surgeon)	Modifier -66 (Surgical Team)
Number of surgeons	Two	Three or more
Payment	62.5% each (standard formula)	By report, varies by procedure
Procedures	Many complex procedures	Very rare, highly complex (organ transplant, separation of conjoined twins)
Documentation	Separate reports from each surgeon	Team leader report + team documentation
Frequency	Relatively common	Very rare

When to Use -66 Instead of -62:

• Three or more primary surgeons working simultaneously
• Extremely complex procedure (e.g., multiple organ transplant)
• Payer-specific surgical team policies
• Team approach required due to procedure nature

Specialties Commonly Using Modifier -62

Specialty Combinations Frequently Using Co-Surgery:

1. Neurosurgery + Orthopedic Surgery (Spine):

• Complex spinal fusions
• Spinal tumor resections
• Anterior/posterior approaches
• Revision spine surgery

2. Surgical Oncology + Plastic/Reconstructive Surgery:

• Complex oncologic resections with reconstruction
• Free flap reconstruction
• Pelvic exenteration with reconstruction
• Head and neck cancer with reconstruction

3. Cardiothoracic Surgery + Vascular Surgery:

• Combined cardiac and aortic procedures
• Complex aneurysm repairs
• Congenital cardiac malformations
• Thoracoabdominal aneurysms

4. Neurosurgery + Plastic Surgery:

• Craniofacial reconstruction
• Craniosynostosis repair
• Complex skull base tumors
• Congenital craniofacial anomalies

5. General/Vascular Surgery + Orthopedic/Neurosurgery (Spine):

• Anterior lumbar approaches
• Complex spinal fusion
• Retroperitoneal approaches

6. Urology + Gynecology:

• Complex pelvic reconstruction
• Pelvic exenteration
• Vesicovaginal fistula repair

7. ENT/Head & Neck + Neurosurgery:

• Skull base tumors
• Complex sinus/cranial procedures

8. Colorectal Surgery + Urology:

• Pelvic exenteration
• Complex pelvic floor reconstruction

Examples

Example 1: Appropriate Use - Spine Surgery

Case:

• Patient: 55-year-old with severe L4-L5 spondylolisthesis
• History: Prior abdominal surgery, radiation
• Plan: Combined anterior and posterior spinal fusion

Surgeon 1 - Vascular Surgeon:

• Performs anterior retroperitoneal approach
• Mobilizes iliac vessels (dense adhesions from radiation)
• Exposes L4-L5 disc space
• Hands off to spine surgeon

Surgeon 2 - Orthopedic Spine Surgeon:

• Anterior interbody cage placement
• Patient repositioned prone
• Posterior pedicle screw instrumentation
• Rod placement and fusion

Billing:

• Surgeon 1: CPT 22558-62 (anterior interbody fusion) + 22853-62 (instrumentation)
• Surgeon 2: CPT 22558-62 + 22853-62
• Each receives 62.5% of allowable

Medical Necessity:

• Complex vascular anatomy requiring vascular surgery expertise
• Prior radiation making vascular mobilization hazardous
• Spine surgery expertise needed for definitive instrumented fusion
• Two distinct skill sets required

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Example 2: Inappropriate Use - Routine Surgery

Case:

• Patient: 35-year-old with routine inguinal hernia
• Plan: Laparoscopic hernia repair

Surgeon 1:

• Performs laparoscopic dissection
• Reduces hernia
• Places mesh

Surgeon 2:

• Assists with camera
• Holds instruments
• Helps with mesh positioning

Incorrect Billing:

• Surgeon 1: CPT 49652-62
• Surgeon 2: CPT 49652-62

Why Wrong:

• Routine procedure one surgeon can perform alone
• Surgeon 2 acting as assistant, not co-surgeon
• No medical necessity for two primary surgeons

Correct Billing:

• Surgeon 1: CPT 49652 (no modifier, or -80 if surgeon 2 truly qualified assistant)
• Surgeon 2: Should NOT bill (or CPT 49652-80 if qualified assistant surgeon with documentation)

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Example 3: Complex Oncology - Appropriate Use

Case:

• Patient: 60-year-old with large retroperitoneal sarcoma
• Tumor involves major vessels
• Plan: Resection with immediate reconstruction

Surgeon 1 - Surgical Oncologist:

• Wide local excision of sarcoma
• Resection of involved peritoneum
• Lymph node dissection
• Vascular control and resection
• Creates large soft tissue defect

Surgeon 2 - Plastic/Reconstructive Surgeon:

• Harvests free flap (anterolateral thigh flap)
• Performs microvascular anastomosis
• Reconstructs abdominal wall defect
• Complex closure

Billing:

• Surgeon 1: CPT 49203-62 (excision retroperitoneal tumor) + 35226-62 (vascular repair)
• Surgeon 2: CPT 49203-62 + 15758-62 (free flap)
• Both surgeons append -62 to shared codes
• Each receives 62.5% of allowable

Medical Necessity:

• Complex oncologic resection requiring surgical oncology expertise
• Immediate reconstruction requiring plastic surgery expertise
• Simultaneous work reduces ischemia time
• Two distinct specialty skill sets essential

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Summary

Modifier -62 Key Points:

When to Use:

• Two surgeons working as PRIMARY co-surgeons (not surgeon + assistant)
• Each performs DISTINCT portion of single procedure
• Both specialties/skill sets genuinely REQUIRED
• Medical necessity clearly documented
• Procedure complexity warrants two primary surgeons

Payment:

• Each co-surgeon: 62.5% of allowable fee
• Total: 125% of standard fee
• More than assistant (16%) but less than two separate procedures (200%)

Documentation:

• Each surgeon MUST dictate separate detailed operative report
• Reports must describe DISTINCT work performed
• Medical necessity for co-surgery explained
• NOT duplicate/generic reports

Common Uses:

• Complex spine surgery (anterior/posterior approaches)
• Oncologic resection + reconstruction
• Craniofacial surgery
• Complex cardiovascular procedures
• Multi-specialty pelvic surgery

Compliance:

• Use only when medically necessary
• NOT for routine procedures
• NOT for convenience/training
• Must withstand medical necessity scrutiny
• Check procedure code supports co-surgery (Medicare indicator 2)

When NOT to Use:

• Assistant role (use -80 instead)
• Routine procedure one surgeon can perform
• Same specialty, no distinct skill sets needed
• Teaching/training situations
• Sequential unrelated procedures

Key Difference:

• -62 = Two PRIMARY surgeons, each doing major work
• -80 = ONE primary surgeon + ONE assistant, helping

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This comprehensive guide to modifier -62 covers appropriate use, documentation, billing, payment, and compliance considerations for co-surgeon arrangements.