Wound Care ICD-10 Codes & CPT Codes

Wound care coding requires precision in staging, etiology (pressure, diabetic, venous, arterial), wound location, and the type of debridement or dressing applied. This page covers the top ICD-10-CM and CPT codes used by wound care specialists, wound care centers, and clinicians providing complex wound management services.

FY 2026 ICD-10-CM (CMS) · CPT codes updated annually · All codes verified billable · Last verified: June 2026

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Top ICD-10 Codes for Wound Care

ICD-10 Code Description Billable
L97.419 Non-pressure chronic ulcer of right heel and midfoot with unspecified severity ✓
L97.319 Non-pressure chronic ulcer of right ankle with unspecified severity ✓
L89.310 Pressure ulcer of right buttock, unstageable ✓
L89.210 Pressure ulcer of right hip, unstageable ✓
E11.621 Type 2 diabetes mellitus with foot ulcer ✓
L97.119 Non-pressure chronic ulcer of right thigh with unspecified severity ✓
L98.499 Non-pressure chronic ulcer of skin of other sites with unspecified severity ✓
L89.130 Pressure ulcer of right lower back, unstageable ✓
T81.30XA Disruption of wound, unspecified, initial encounter ✓
L97.219 Non-pressure chronic ulcer of right calf with unspecified severity ✓
L89.009 Pressure ulcer of unspecified elbow, unstageable ✓
L89.619 Pressure ulcer of unspecified heel, unstageable ✓
A41.9 Sepsis, unspecified organism ✓
Z48.01 Encounter for change or removal of surgical wound dressing ✓
B96.89 Other specified bacterial agents as the cause of diseases classified elsewhere ✓
L89.320 Pressure ulcer of left hip, stage 1 ✓
L89.323 Pressure ulcer of left hip, stage 3 ✓
L89.324 Pressure ulcer of left hip, stage 4 ✓
L89.409 Pressure ulcer of contiguous site of back, buttock and hip, unspecified stage ✓
L89.510 Pressure ulcer of right ankle, unstageable ✓
L89.519 Pressure ulcer of right ankle, unspecified stage ✓
L89.520 Pressure ulcer of left ankle, unstageable ✓
L89.529 Pressure ulcer of left ankle, unspecified stage ✓
L89.890 Pressure ulcer of other site, unstageable ✓
L97.112 Non-pressure chronic ulcer of right thigh with fat layer exposed ✓
L97.212 Non-pressure chronic ulcer of right calf with fat layer exposed ✓
L97.312 Non-pressure chronic ulcer of right ankle with fat layer exposed ✓
L97.412 Non-pressure chronic ulcer of right heel and midfoot with fat layer exposed ✓
L97.512 Non-pressure chronic ulcer of other part of right foot with fat layer exposed ✓
L97.809 Non-pressure chronic ulcer of other part of lower leg, unspecified severity ✓
L98.411 Non-pressure chronic ulcer of buttock limited to breakdown of skin ✓
L98.421 Non-pressure chronic ulcer of back limited to breakdown of skin ✓
E11.622 Type 2 diabetes mellitus with other skin ulcer ✓
E13.621 Other specified diabetes mellitus with foot ulcer ✓
I83.001 Varicose veins of unspecified lower extremity with ulcer of thigh ✓
I83.009 Varicose veins of unspecified lower extremity with ulcer of unspecified site ✓
T14.0XXA Open wound of unspecified body region, initial encounter ✓
Z87.39 Personal history of other musculoskeletal disorders ✓
Z96.641 Presence of right artificial knee joint ✓
Z48.817 Encounter for surgical aftercare following surgery on the skin and subcutaneous tissue ✓

Source: CMS ICD-10-CM Official Code Set FY 2026

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Common CPT Codes for Wound Care Billing

CPT Code Description Medicare Rate* Common Modifiers
97597 Debridement, open wound; first 20 sq cm or less (high pressure waterjet/sharp selective) ~$74 -25, -59
97598 Debridement, open wound; each additional 20 sq cm (add-on code) ~$44 -51 exempt (add-on)
97602 Wound(s), non-selective debridement without anesthesia (wet-to-moist, enzymatic, abrasion) ~$45 -25, -59
97610 Low frequency, non-contact, non-thermal ultrasound; wound assessment and treatment per day ~$48 -59, -76
16020 Dressings and/or debridement of partial-thickness burns, initial or subsequent; small (<5% TBSA) ~$62 -25, -57
99213 Office/outpatient visit, established patient, low complexity ~$92 -25
99214 Office/outpatient visit, established patient, moderate complexity ~$134 -25
97605 Negative pressure wound therapy, durable medical equipment; wound surface area ≤50 sq cm ~$90 -59, -76
97606 Negative pressure wound therapy, durable medical equipment; wound surface area >50 sq cm ~$120 -59, -76
11042 Debridement, subcutaneous tissue (includes epidermis and dermis, if performed); first 20 sq cm or less ~$83 -25, -59
11043 Debridement, muscle and/or fascia (includes epidermis, dermis, subcutaneous tissue); first 20 sq cm or less N/A (facility) -59
11044 Debridement, bone (includes epidermis, dermis, subcutaneous tissue, muscle and/or fascia); first 20 sq cm or less N/A (facility) -59
29580 Strapping; Unna boot ~$31 -59
15271 Application of skin substitute graft, trunk, arms, legs; first 25 sq cm or less ~$65 -59, -RT, -LT
97016 Vasopneumatic compression device application; each 15 minutes ~$22 -59, -76
97535 Self-care/home management training, each 15 minutes (wound care education) ~$29 -GP, -59
Debridement of Infected Skin (11000 Series)
11000 Debridement of extensive infected skin; up to 10% of body surface area ~$48 -25 same-day E/M
11001 Debridement of infected skin; each additional 10% BSA (add-on to 11000) ~$20 add-on
Debridement Add-On Codes (Additional Area Beyond First 20 sq cm)
11045 Debridement, subcutaneous tissue; each additional 20 sq cm (add-on to 11042) ~$54 add-on to 11042
11046 Debridement, muscle and fascia; each additional 20 sq cm (add-on to 11043) ~$80 add-on to 11043
11047 Debridement, bone; each additional 20 sq cm (add-on to 11044) ~$63 add-on to 11044

*Approximate 2025 CMS national non-facility rate. Rates vary by geography, setting, and payer contract. Refer to the CMS Physician Fee Schedule for official rates.

Top Denial Reasons for Wound Care Claims

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Medical Necessity Not Documented

Payers require documentation of wound type, size, depth, and treatment rationale in every encounter note. Ensure the chart includes wound measurements, presence of infection or necrosis, and the clinical reason debridement or advanced therapy was performed at each visit.

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Incorrect Diagnosis-Procedure Code Linkage

Using a generic wound ICD-10 code (e.g., L98.499) when a more specific code is available — such as a diabetic foot ulcer (E11.621) or staged pressure ulcer — triggers payer edits. Map each procedure to the most specific ICD-10 diagnosis supported by documentation.

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Missing Modifier -25 on Same-Day E/M

Billing an E/M (99213/99214) on the same day as a wound procedure (97597, 11042) without modifier -25 results in automatic bundling denial. Append -25 only when a separately identifiable E/M service was performed and documented beyond the wound procedure itself.

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Frequency Limits Exceeded Without Prior Authorization

Wound care codes like 97597 and 97605/97606 are subject to payer-specific frequency limitations; exceeding allowed visit counts without prior authorization triggers retrospective denials. Verify payer frequency edits before scheduling and obtain prior auth when treatment extends beyond standard episode limits.

Wound Care Billing & Coding Tips

  • Pressure ulcer stage must be documented by the treating clinician — coders cannot infer the stage from wound measurements alone; query the physician if the stage is not documented.
  • Debridement codes (97597/97598) are area-based in cm2 — document the wound surface area in square centimeters, not length × width, to match the code descriptor.
  • E11.621 (diabetes with foot ulcer) requires the ulcer site code (L97.x) as an additional code to fully specify the wound location and depth.
  • Z48.01 (encounter for wound dressing change) is appropriate when the sole purpose of the visit is dressing change without evaluation or debridement.

Frequently Asked Questions

How are pressure ulcer stages coded in ICD-10?

Pressure ulcers use L89.x codes with a final digit indicating stage: 1 (non-blanchable erythema), 2 (partial thickness), 3 (full thickness skin loss), 4 (full thickness tissue loss), 0 (unstageable), 6 (deep tissue injury). The stage must be documented by the clinician — do not assign a stage based on wound measurements alone.

What is the difference between 97597 and 97602?

97597/97598 cover selective debridement (sharp, waterjet) performed by a licensed wound care clinician. 97602 covers non-selective debridement (wet-to-moist, enzymatic). Selective debridement reimburses at a higher rate and requires documentation of the tissue type removed.

When is E11.621 the primary code?

E11.621 (Type 2 DM with foot ulcer) is the primary code when a diabetic foot ulcer is the reason for the encounter. Per ICD-10 convention, code the diabetes (E11.x) first, then add the ulcer site code (L97.4×1 for heel, L97.5×1 for other parts of the foot).

What does ‘unstageable’ mean for pressure ulcers?

Unstageable (L89.xx0) means the wound base is obscured by slough or eschar, preventing visual staging. This is different from ‘unspecified stage’ (L89.xx9) which means the documentation does not specify the stage. Unstageable wounds may actually be Stage 3 or 4 under the slough.

How does OmniMD support wound care documentation?

OmniMD’s Wound Care module includes wound measurement tracking with body diagrams, stage-based documentation templates, and tissue type documentation fields aligned with the PUSH Tool and NRS wound assessment standards.

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