Wound Care CPT Codes (2026): Debridement, Wound VAC, Skin Substitutes and E/M

Key Takeaways 

• Common code families include 97597–97598 for selective debridement, 97602 for nonselective debridement, 11042–11047 for surgical debridement, 97605–97608 for NPWT, and 15271–15278 for skin substitute applications. 

• When choosing between 97597 and 11042, focus on the depth of tissue debrided, not simply the depth of the wound. 

• The draft describes a 2026 Medicare payment rate of $127.14 per sq cm for non-BLA skin substitutes. Confirm current payment requirements before billing. 

• Support each claim with wound measurements, the tissue and depth removed, the treatment method, wound classification, and progress toward healing. 

Accurate wound care billing starts with matching the service performed to the appropriate Current Procedural Terminology (CPT) code. Common services include evaluation and management, debridement, negative pressure wound therapy, skin substitute applications, and compression treatment. 

This guide organizes common wound care codes by treatment type, then explains documentation, modifier, and payer considerations. Use it to identify coding issues that can contribute to claim denials, reimbursement delays, and compliance risks. 

Wound Care CPT Codes at a Glance 

CPT Code	Description	When to Use	Notes
97597	Wound debridement	Open wounds (First 20 sq. cm.)
97598	Wound debridement	Open wounds (increments of 20 sq. cm.)	Add-on code
97602	Non-selective debridement	Devitalized tissue from single/multiple wounds
11042	Surgical debridement	Wounds within subcutaneous tissue
11043	Surgical debridement	Wounds within muscle/fascia
11044	Surgical debridement	Wounds within the bone
11045	Surgical debridement	Wounds within subcutaneous tissue (increments of 20 sq. cm.)	Add-on code
11046	Surgical debridement	Wounds within muscle/fascia (increments of 20 sq. cm.)	Add-on code
11047	Surgical debridement	Wounds within the bone (increments of 20 sq. cm.)	Add-on code
97605	Negative pressure wound therapy	Total wound surface area of ≤ 50 sq. cm.	Non-DME system
97606	Negative pressure wound therapy	Total wound surface area of > 50 sq. cm.	Non-DME system
97607	Negative pressure wound therapy	Total wound surface area of ≤ 50 sq. cm.	DME system
97608	Negative pressure wound therapy	Total wound surface area of > 50 sq. cm.	DME system
97610	Negative pressure wound therapy	Low-frequency, non-contact	Per session
15271	Skin substitute grafts to trunk, legs, arms	Total wound surface area of up to 100 sq. cm.	First ≤ 25 sq. cm.
15272	Skin substitute grafts to trunk, legs, arms	Increments of 25 sq. cm.	Add-on code
15273	Skin substitute grafts to trunk, legs, arms	Total wound surface area of ≥ 100 sq. cm.
15274	Skin substitute grafts to trunks, legs, arms	Increments of 100 sq. cm.	Add-on code
15275	Skin substitute grafts to face, eyelids, mouth, ears, neck, scalp, genitalia, feet, hands	Total wound surface area of up to 100 sq. cm.	First ≤ 25 sq. cm.
15276	Skin substitute grafts to face, eyelids, mouth, ears, neck, scalp, genitalia, feet, hands	Increments of 25 sq. cm.	Add-on code
15277	Skin substitute grafts to face, eyelids, mouth, ears, neck, scalp, genitalia, feet, hands	Total wound surface area of ≥ 100 sq. cm.
15278	Skin substitute grafts to face, eyelids, mouth, ears, neck, scalp, genitalia, feet, hands	Increments of 100 sq. cm.	Add-on code
29580	Venous compression (Unna boot)	Venous stasis ulcers
29581	Venous compression (multi-layered)	Venous leg ulcers
99202-99205	Outpatient	New patients	Ranges based on complexity
99211-99215	Outpatient	Established patients	Ranges based on complexity

Active Wound Care Management Codes 

Debridement, the process of removing devitalized tissue to preserve healthy tissue and promote faster healing, must be coded by method (excisional/non-surgical), wound depth, and infection location. Active wound management uses a different set of CPT codes (97597, 97598) if the assessed wound requires selective or non-selective debridement, depending on the wound measurement. 

CPT 97597

This procedure corresponds to selective debridement of the subcutaneous tissue of the skin, which includes its outer (epidermis) and inner (dermis) layers. You can bill this procedure under this CPT code if you perform it on the first 20 sq cm or less of the wounded skin. 

CPT 97598

This procedure corresponds to selective debridement of the subcutaneous tissue of the skin, which includes its outer (epidermis) and inner (dermis) layers. You can bill this procedure under this code as an add-on to CPT 97597 to add an increment of 20 sq cm to the capped coverage. 

CPT 97602 

This procedure corresponds to nonselective debridement of one or more wounds. You can bill this procedure if the procedure uses non-anesthesia techniques (wet-to-moist, enzymatic, mechanical). 

Wound care coding specialists must consider medical necessity when coding. Assigning the appropriate CPT codes requires recording the wound measurements, staging or classification, drainage description, infection location, and the provider’s treatment plan.  

Surgical Debridement CPT Codes 

Assigning CPT codes for wound debridement and cleaning should be straightforward, as it is one of the most common procedures wound care providers perform. Surgical debridement is the procedure of cleaning a wound with the intervention of surgical instruments, such as a scalpel, curette, or surgical scissors.  

CPT 11042 

This procedure corresponds to deep-tissue debridement of the subcutaneous tissue of the skin, which includes its outer (epidermis) and inner (dermis) layers. You can bill this procedure under this CPT code if you perform it on the first 20 sq cm or less of the wounded skin. 

CPT 11043 

This procedure corresponds to deep-tissue debridement of the muscle and/or the connective tissues wrapping it (fascia), including the outer (epidermis) and inner (dermis) layers. You can bill this procedure under this CPT code if it is performed on the first 20 sq cm or less of the wounded skin. 

CPT 11044 

This procedure corresponds to deep-tissue debridement into bone, including the outer (epidermis) and inner (dermis) layers. You can bill this procedure under this CPT code if it is performed on the first 20 sq cm or less of the wounded skin. 

CPT Add-Ons 11045-11047 

These add-on CPT codes cover an additional 20 sq cm of the procedure. Each procedure is assigned an add-on CPT code: surgical debridement of subcutaneous tissue (11045), muscle/fascia (11046), and bone (11047). For example, if a surgical debridement that reached bone covered 30 sq cm, you must bill both codes 11044 (first 20 sq cm) and 11047 (excess of 10 sq cm). 

However, when a wound care practitioner debrides a wound and reaches multiple skin layers, each wound care CPT code explicitly describes coding only to the deepest layer reached or treated. This prevents coding errors from tagging multiple CPT codes for different debridement depths. 

Another coding consideration is grouping wounds with the same depth. For example, if two wounds are debrided down to the dermis, you can simply add the coverages and factor the sum into the coding. 

CPT 97597 vs. 11042: How to Choose 

Although both codes correspond to wound debridement, they differ in tissue depth, debridement type, and documentation guidelines. 

CPT 97597 corresponds to selective debridement, a procedure in which only the dead surface tissue on the skin, epidermis, or dermis is cleaned and debrided, leaving the wound bed untouched. CPT 11042, by contrast, involves deep surgical debridement that reaches subcutaneous tissue and healthy tissue surrounding the wound. 

Although both have a coverage of 20 sq cm, billing depends heavily on the procedure’s depth. If surgical debridement fails to document that it reached the subcutaneous tissue, it will be automatically downcoded to 97597, so documentation is critical for surgical procedures such as deep tissue debridement. 

Wound VAC CPT Codes 

Routine daily dressing changes are generally considered part of bundled facility or home health services and are not separately reimbursable unless specific payer exceptions apply. In contrast, complex wound management involving negative pressure wound therapy (NPWT) or vacuum-assisted closure (VAC) devices requires distinct CPT coding, per current payer and regulatory guidelines. 

CPT Code	Device Type	Coverage
97605	Non-DME	≤ 50 sq cm
97606	Non-DME	> 50 sq cm
97607	DME	≤ 50 sq cm
97608	DME	> 50 sq cm

Document the device used, application times, total wound surface area, and clinical justification for NPWT. Confirm payer-specific prior authorization and documentation requirements before billing. Credex Healthcare’s home health billing support includes wound VAC coding and claims assistance. 

Low-Frequency Ultrasound: CPT 97610 

CPT 97610 describes low-frequency, non-contact ultrasound wound therapy and is billed per session. Same-day billing is subject to NCCI edits, particularly when services involve the same anatomical site. 

Skin Substitute CPT Codes and the 2026 Medicare Payment Change 

Advanced wound care services, including skin substitutes, grafts, and cellular therapies, use CPT and HCPCS Level II codes that are updated annually. 

Group A: Trunk, Legs, Arms 

• CPT 15271: Less than or equal to 25 sq cm 

• CPT 15272: Add-on to 15271; increments of 25 sq cm 

• CPT 15273: First 100 sq cm 

• CPT 15274: Add-on to 15273; increments of 100 sq cm 

Group B: Face, Eyelids, Mouth, Ears, Neck, Scalp, Genitalia, Feet, Hands 

• CPT 15275: Less than or equal to 25 sq cm 

• CPT 15276: Add-on to 15275; increments of 25 sq cm 

• CPT 15277: First 100 sq cm 

• CPT 15278: Add-on to 15277; increments of 100 sq cm 

For skin substitute services, document medical necessity, product identifiers, graft dimensions, and anatomical wound sites. Review the applicable payer’s coverage criteria and reimbursement method, especially when treating diabetic foot ulcers. 

E/M Codes with Wound Care Visits 

When billing E/M codes for wound care visits, consider the type of patients visiting and the Medical Decision Making (MDM) or Total Practitioner Time during the encounter. 

CPT codes 99202-99205 categorize wound care visits for patients who have not received professional services from the same wound care specialist for a significant period. They are simply called new patients. By contrast, CPT code range 99211-99215 applies to patients who frequently visit the same wound care specialist or, in the case of CPT 99211, a supervised clinical staff. 

When selecting a specific E/M code, we must consider either MDM or TPT to determine the correct code. For the MDM pathway, the visit must answer two of the three questions: (a) Are the numbers high and problems complex enough? (b) Are the visit numbers and complexity reviewed and analyzed? (c) Is the risk of complication or morbidity high? For the TPT pathway, the total face-to-face and non-face-to-face time spent by the specialist with the patient must be considered. 

Modifiers, such as –25, must be added to the CPT codes to indicate that the treatment is performed alongside another wound care E/M service for distinguishing purposes. For example, on the same day of the visit, if the primary wound is treated with non-selective debridement and the wound care specialist evaluates another wound, tag the CPT codes as 97602 and 99214-25, respectively. 

Modifiers Used in Wound Care Billing 

Modifiers in wound care billing document distinctions between procedures, usually within the same encounter day. 

Modifier 25, mentioned earlier, is appended when an E/M service is separately identifiable from another minor wound care service on the same day. Use Modifier 59 (broader) and XS (CMS-subset; specific) when unbundling two procedures performed in different anatomical sites during the same session. Therapy modifiers GP, GO, and GN apply when the wound care service is delivered under an outpatient Physical Therapy, Occupational Therapy, and Speech-Language Pathology plan of care, respectively. Lastly, wastage modifiers JW and JZ indicate whether the applicable single-dose payable or biologic drug is discarded. 

Modifier XU, on the other hand, is used for sessions where two distinct, non-overlapping procedures are applied in the same wound or site. You must prove the non-overlapping aspect through detailed, clear documentation and separate medical necessity. Otherwise, it will be downcoded to Modifier XS. 

Other Wound Care Codes 

Other wound care codes include 29580, applied to strapping with an Unna compression bandage boot used for patients with venous ulcers. 29581, on the other hand, is applied to another compression bandage that uses a multi-layer compression system for the leg, ankle, and foot, if applicable. 

Whirlpool therapy, coded as 97022, is used in wound care when fluid hydrotherapy is performed before wound debridement. Two CPT codes are used for Hyperbaric Oxygen Therapy (HBOT): one for the physician who performs the therapy (99183) and another for the facility that operates the full-body chamber (G0277). 

Documentation Tips for Accurate Coding 

Accurate, compliant wound care billing in 2026 requires detailed clinical documentation, including precise wound measurements (length, width, depth), anatomical location, drainage descriptors, infection indicators, and a clear clinically grounded justification for each debridement or advanced intervention. 

In 2026, certified medical coding experts must ensure complete alignment between clinical documentation, coding worksheets, and submitted claims. When billing evaluation and management (E/M) codes alongside treatment codes, clearly establish medical necessity through an ICD-10 diagnosis code (L89, L97, and E11.621) or qualifying conditions. Supporting documentation should incorporate wound photography and reference the latest wound staging criteria, such as Wagner, NPUAP, or other current standards, to reinforce claim validity. 

Medicare and Payer Rules to Know 

Medicare policies for wound care billing in 2026 remain stringent and detailed. Coverage limitations include frequency, place of service, and strict definitions of medical necessity. Providers must document pressure ulcer staging, credentialing, and a rationale for ongoing care in accordance with current CMS guidelines. 

Additionally, Local Coverage Determinations (LCDs) and National Coverage Determinations (NCDs) from Medicare Administrative Contractors (MACs) must stay compliant and current with regional and national payer variations. Failure to comply with updated guidelines may result in audits, payment denials, and compliance issues. 

Common Wound Care Coding Mistakes 

Common medical billing denials in 2026 often result from selecting the wrong CPT code because wound depth or surface area assessments are inaccurate. Submitting CPT 11042 for superficial debridement, for example, does not meet coding criteria and will typically result in claim denial. Additionally, failing to append required modifiers, such as 25 or 59, when indicated may trigger improper claim bundling and subsequent payment denials. Bundling 97602 with 97597 violates NCCI edits. 

Another common error is submitting CPT codes for dressing changes without satisfying the latest documentation requirements. Providers must routinely confirm whether routine dressing changes are included within global surgical packages, as inclusion criteria differ by payer and are subject to annual policy revisions. 

Submitting NPWT claims with inaccurate wound measurements or obsolete CPT codes in 2026 increases the risk of payer audits and claim denials. Coding and clinical teams must proactively monitor annual CPT and CMS updates to ensure uninterrupted reimbursement. 

A reliable medical billing audit can turn these issues into accurate, well-supported claims that streamline revenue collection and stabilize your practice’s RCM. 

How Credex Healthcare Helps with Wound Care Billing 

Complex coding, strict NCCI edits, and documentation requirements to support medical necessity can be lengthy, especially in cases where you juggle patient care and administrative tasks on your own. Outsource your wound care billing to Credex Healthcare, and we will provide full-service coding, including claim management, CPT and ICD-10 procedure-diagnosis alignment, accurate modifier application, industry-grade documentation, and prior authorization management for elective procedures. We ensure your claims are free of bundling errors, coding misalignment, and documentation gaps that trigger processing delays and denials. Alongside billing, as one of the reliable credentialing companies for wound care practices, we support wound care specialists seeking payer onboarding and network participation for prone populations. 

Conclusion 

Wound care billing in 2026 has changed for the better, ensuring billing specialists only select accurate CPT codes, reimbursement protocols are in place, and documentation is detailed enough to secure revenue cycle. 

Adhering to 2026 Medicare billing mandates and distinguishing CPT codes 97597, 97602, and 11042 is essential to secure appropriate reimbursement and prevent unwanted denials and post-payment audits. 

Our medical billing services support your bid to an almost-zero denial rate and free you from delayed reimbursements or outright denials.

FAQs 

What are the most common wound care CPT codes?  

Common wound care CPT codes include 97597/97598 (selective debridement), 97602 (non-selective debridement), 11042-11047 (surgical debridement), 97605-97608 (wound VAC), 15271-15278 (skin substitute grafts), and E/M codes. 

What is the difference between CPT 97597 and 11042?  

The difference is tissue depth. 97597 is selective debridement of devitalized tissue; 11042 is surgical debridement reaching subcutaneous tissue. 

What is the CPT code for a wound VAC?  

The CPT ranges for this procedure include 97605-97606 for DME-powered NPWT and 97607-97608 for non-DME disposable devices. The specific coding depends on the total wound surface area covered. 

Can you bill an E/M visit with a debridement?  

Only if a significant, separately identifiable E/M service is documented; append modifier 25 to the E/M code   

How are skin substitutes paid by Medicare in 2026?  

Most non-BLA products are incident-to supplies at a flat rate of $127.14 per sq cm. We bill the fee under CPT codes 15271-15278.  

Can you bill dressing changes separately?   

You can bill dressing changes separately, except for CPT codes 97597, 97598, 97602, or 11042-11047, since dressings are included. Standalone dressing changes depend on the setting and payer involved. 

Can you bill 97602 and 97597 on the same day?   

You cannot bundle the two codes if you perform the corresponding procedures in the same wound or site on the same service date. 

What documentation supports wound care codes?   

You must include wound measurements (before and after), tissue type and depth removed, method, wound type and stage, and progress toward healing.