Summary & Overview
CPT 13101: Complex Repair of Trunk Wound (2.6–7.5 cm)
Headline: CPT 13101: Complex Trunk Wound Repair (2.6–7.5 cm)
Lead: CPT 13101 is the code for complex surgical repair of integumentary wounds on the trunk measuring 2.6 to 7.5 cm. It defines a specific operative service commonly provided in outpatient hospital settings and is relevant to clinicians, coding professionals, and payers nationwide.
What this code represents and why it matters: CPT 13101 captures surgical complexity beyond simple or intermediate repairs, reflecting layered closure, extensive undermining, or scar revision techniques needed for moderate-length trunk wounds. Accurate application of this code affects clinical documentation, billing accuracy, and appropriate payment for resource-intensive procedures.
Key payers covered: This summary addresses coverage and billing considerations relevant to Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Overview of reader takeaways: Readers will find a concise overview of the clinical context for use of CPT 13101, typical sites of service, common coding interactions, and adjacent codes for length increments. The publication provides benchmarks and policy-oriented context to support coding decisions, highlights payer considerations, and outlines related procedural codes for continuity in billing (for example, shorter or additional length codes). The content is intended to clarify when CPT 13101 applies, how it relates to related repair codes, and what documentation elements commonly support its selection.
CPT Code Overview
CPT 13101 denotes complex repair procedures on the integumentary system for a wound located on the trunk with a repair length of 2.6 to 7.5 cm. The procedure falls under the broader service type of surgical repair, integumentary system and typically occurs in an Outpatient Hospital (POS 22) setting. Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient presents to the outpatient hospital surgical clinic after sustaining a deep, jagged laceration to the abdominal wall requiring layered closure. The wound measures approximately 4.0 cm after debridement and involves multiple tissue layers with significant loss of dermal and subcutaneous tissue, necessitating complex repair techniques such as extensive undermining, layered closure, and possible scar revision. The clinical workflow includes initial assessment and cleaning, local anesthesia administration, wound measurement and documentation, execution of complex closure with meticulous layered suturing, postoperative instructions, and scheduling of follow-up for wound check and suture removal. The procedure is performed by a surgeon or plastic surgeon and is billed as 13101 for complex repair of a wound to the trunk measuring 2.6 to 7.5 cm.
Coding Specifications
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Modifiers:
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59— Distinct Procedural Service: used when the complex repair represented by13101is separate and distinct from other services performed on the same patient on the same date (for example, a separate laceration repair in a different anatomical region that is not integral to the primary procedure). -
51— Multiple Procedures: applied when13101is one of multiple surgical procedures performed during the same encounter to indicate multiple procedures were performed; sequencing and payer-specific bundling rules apply. -
Provider Taxonomies:
| Taxonomy Code | Specialty |
|---|---|
208600000X | Surgery Physician |
208800000X | Plastic Surgery Physician |
207Q00000X | Family Medicine Physician |
These taxonomies correspond to clinicians who may perform or report the integumentary complex repair procedure represented by 13101.
Related Diagnoses
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S01.81XA— Laceration without foreign body of other part of head, initial encounterClinical relevance: A laceration diagnosis indicates an open wound that may require complex closure techniques if involving substantial tissue loss or complicated wound edges; while this code references the head, documentation must support use of
13101only if the trunk is being repaired (otherwise a trunk-specific CPT would not align with a head diagnosis). -
S31.119A— Laceration without foreign body of abdominal wall, initial encounterClinical relevance: Directly relevant to
13101when the abdominal wall (trunk) laceration measures 2.6 to 7.5 cm and requires complex layered repair. -
T81.31XA— Disruption of external operation (surgical) wound, not elsewhere classified, initial encounterClinical relevance: A postoperative wound disruption on the trunk may necessitate complex repair techniques consistent with
13101if the disrupted wound length and tissue involvement meet the code’s complexity and size criteria. -
L90.5— Scar conditions and fibrosis of skinClinical relevance: Scar revision or management of fibrotic skin on the trunk that requires complex surgical repair could be clinically related to procedures described by
13101when the repair meets complexity and size thresholds. -
S41.101A— Laceration without foreign body of unspecified shoulder, initial encounterClinical relevance: A shoulder laceration is anatomically on the upper extremity/shoulder region; documentation must justify reporting
13101only when the trunk is being repaired, otherwise a different body region CPT would be appropriate.
Related CPT Codes
| CPT Code | Description |
|---|---|
13100 | complex repair of a wound to the trunk (1.1 to 2.5 cm) |
13102 | complex repair of each additional 5 cm or less of a wound to the trunk |
13100 represents a smaller primary repair length (1.1 to 2.5 cm) and is an alternative when the measured wound length falls within that range instead of the 13101 length range. 13102 is used to report each additional 5 cm (or less) of wound length beyond the initial service reported with 13100 or 13101. In clinical workflow, 13101 is selected when the primary wound on the trunk measures 2.6 to 7.5 cm; 13102 may be appended (or reported in addition) to account for extra wound length beyond the base code. 13100 and 13102 are commonly considered together with 13101 for accurate measurement-based reporting and when multiple contiguous wound lengths are repaired.
National Reimbursement Benchmarks
National average rates for CPT 13101 place Medicare close to the BUCA (combined commercial) mean: Medicare mean is $404.43 while BUCA mean is $423.60, a modest difference of $19.17. UnitedHealth Group and Cigna report substantially higher mean rates ($588.38 and $538.83, respectively), while Aetna is lower at $318.88 and Blue Cross Blue Shield sits near Medicare at $406.85.
Rate dispersion (P75 − P25) varies by payer. UnitedHealth Group has the widest interquartile spread at $343.33 (P75 $711.00 − P25 $367.67), followed by Cigna at $305.67 and Blue Cross Blue Shield at $194.00. Medicare shows the tightest dispersion at $43.00, indicating the most compressed distribution among the reported payers. The table and chart below present the full breakdown of mean rates and percentiles.
State Benchmarks
State: AK1 / 50
Alaska Benchmarks
Alaska exhibits substantial variation in reimbursement rates for CPT code 13101 across payers. The rate spread, calculated as the difference between the 75th and 25th percentiles, is most pronounced for Aetna ($209.00) and Blue Cross Blue Shield ($495.69), indicating significant variability in commercial payer rates. In contrast, Medicare's rate spread is much narrower at $38.00, reflecting more consistent payments across its localities.
Compared to national averages, all commercial payers in Alaska reimburse at considerably higher levels, with Aetna and UnitedHealth Group standing out for their elevated mean rates. The table and chart below present the full breakdown of payer-specific rates, highlighting the distinct landscape of reimbursement in Alaska.
Key Insights for Alaska
- Aetna is the highest paying payer for CPT 13101 in Alaska, with a mean rate of $1,315.35, while Medicare is the lowest at $391.18.
- All commercial payers in Alaska reimburse significantly above their respective national averages, with Aetna and UnitedHealth Group showing the largest deviations.
- The rate spread is widest for Aetna ($209.00) and narrowest for Medicare ($38.00), indicating greater variability among commercial payers.
Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.