CPT Code 58920 Wedge Resection or Bisection of Ovary: Surgical Coding and Billing Guide

Ovarian preservation procedures can be complex, and accurate coding is crucial to ensuring practices are reimbursed correctly. Surgeries that remove portions of ovarian tissue require careful attention to documentation, surgical approach, and clinical details. With precise OBGYN medical billing, practices can capture the full scope of procedural complexity, reduce denials, and maintain compliance, allowing providers to focus on delivering the best care to their patients.

Definition and Scope For CPT Code 58920

CPT 58920, as defined by the American Medical Association (AMA) and referenced on AAPC’s Codify platform (unchanged through 2025/2026 updates), is:

Wedge resection or bisection of ovary, unilateral or bilateral.

This code describes a surgical procedure, typically via open abdominal incision (laparotomy), in which the surgeon removes a wedge-shaped portion (pie-slice) of ovarian tissue or bisects (divides in half) one or both ovaries. The procedure aims to excise abnormal tissue while preserving ovarian function, often indicated for symptomatic ovarian cysts, polycystic ovaries, or other benign conditions causing pain, hormonal issues, or torsion risk.

Scenarios for CPT 58920

These real-world examples illustrate when CPT 58920 is appropriately reported, helping coders and practices ensure accurate OBGYN medical billing and proper reimbursement.

Scenario 1 – Adnexal Mass Involving Ovary and Tube

A 46‑year‑old presents with an adnexal mass involving the left ovary and fallopian tube. The surgeon performs an open removal of the left ovary and tube.

→ Report CPT 58920

Scenario 2 – Torsion of Ovary and Tube

A patient presents with acute pelvic pain and imaging suggests torsion involving both the right ovary and right fallopian tube. Surgical exploration confirms non‑viable structures and both are removed.

→ Report CPT 58920

Scenario 3 – Concurrent Procedure Without Separate Indication

During an open pelvic surgery for myomectomy, the surgeon removes a normal‑appearing ovary and tube without specific pathology.

→ Do NOT report CPT 58920 separately; this is bundled in the primary service unless documentation supports distinct medical necessity.

Modifiers for CPT 58920

Using the correct modifiers ensures CPT 58920 is reported accurately, claims are reimbursed properly, and compliance is maintained.

Appropriate modifiers may include:

• Modifier 59 (Distinct Procedural Service): When the combined ovary and tube removal is separate from another procedure at the same session, supported by documentation.
• Modifier 22 (Increased Procedural Services): When complexity significantly exceeds the norm (e.g., extensive adhesions or difficult anatomy), with narrative justification.

Modifier use must be well supported in the operative notes.

Documentation Requirements for CPT 58920

To support CPT 58920, documentation should clearly show:

• Clinical indication for combined ovary and tube removal
   
• Laterality (right or left)
   
• Surgical approach (open abdominal)
   
• Operative findings and rationale
   
• Separation from concurrent procedures, if applicable
   

Clear operative and clinical notes strengthen payer review and support reimbursement.

Billing & Reimbursement Tips

• CPT 58920 may be bundled with other pelvic or abdominal procedures; use modifiers appropriately if distinct.
• Proper documentation supports OBGYN medical billing compliance and maximizes reimbursement.
• Review payer-specific rules and NCCI edits before reporting the code separately.
• Ensure modifiers like -22 or -59/XU are fully justified in the operative note to prevent denials.

Boost Practice Revenue with BillingFreedom’s OBGYN Medical Billing Solutions

Procedures that remove a portion of ovarian tissue require meticulous documentation, correct modifier application, and a clear understanding of payer-specific rules.

BillingFreedom's specialized team focuses exclusively on OBGYN procedures, reviewing operative notes to confirm:

• Surgical approach (open abdominal incision)
• Laterality and extent of tissue removed (wedge vs. bisection)
• Clinical indication, including symptomatic cysts, recurrent lesions, or fertility preservation
• Procedural complexity and distinct procedural reporting

High Accuracy & Claim Efficiency

• Coding accuracy: 98–99% for complex OBGYN procedures
• First-pass claim acceptance: 97–99%
• Denial rates: consistently below 3%

Comprehensive Support

• Preauthorization guidance for elective or complex ovarian preservation procedures
• Claims submission, tracking, and denial management
• Continuous updates on AMA CPT changes, NCCI edits, and payer rules
• Detailed operative note review to ensure compliance and coding accuracy

For more details about our exceptional OB/GYN medical billing services, please don't hesitate to contact us via email at info@billingfreedom.com or call us at +1 (855) 415-3472. 

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