Venous Leg Ulcers: ICD-10 Codes (I83, I87), CEAP Classification & Compression Therapy Guide

What Causes Venous Leg Ulcers? Aetiology and Pathophysiology

Venous leg ulcers (VLUs) are the most common type of leg ulcer, accounting for approximately 70–80% of all lower limb ulcers. They result from chronic venous insufficiency (CVI), a condition in which venous hypertension — elevated ambulatory venous pressure in the superficial or deep venous system — leads to progressive skin damage and ulceration.

The pathophysiological cascade involves: venous valve incompetence or deep venous thrombosis → venous reflux → ambulatory venous hypertension → capillary hypertension and leakage → pericapillary fibrin cuffing → tissue hypoxia → dermal inflammation (lipodermatosclerosis, haemosiderin deposition) → ulceration at the gaiter area (medial lower leg, above the medial malleolus).

In Singapore, vascular surgery services at NUH, SGH, TTSH, Mount Elizabeth Hospital, and Gleneagles Hospital manage venous disease, while community nursing services provide ongoing wound care and compression therapy. MOH Singapore community care frameworks include provision for district nurses to conduct compression bandaging for VLU patients in the community.

ICD-10 Codes for Venous Leg Ulcers

What Is the CEAP Classification for Venous Disease?

The CEAP (Clinical, Etiological, Anatomical, Pathophysiological) classification is the international standard for classifying chronic venous disorders:

ABPI Assessment: When Is Compression Therapy Safe?

Compression therapy is the cornerstone of VLU treatment, but must only be applied after Ankle Brachial Pressure Index (ABPI) assessment to exclude significant peripheral arterial disease. ABPI is measured using a hand-held Doppler and sphygmomanometer:

• ABPI ≥0.8: Full high compression (40 mmHg at ankle) is safe and indicated for venous ulcers
• ABPI 0.5–0.8 (or 0.6–0.8): Reduced compression (20–25 mmHg) with close monitoring under vascular supervision; refer to vascular service
• ABPI <0.5: Compression contraindicated; urgent vascular surgery referral to SGH, NUH, or CGH vascular surgery
• ABPI >1.3: Suspect medial artery calcification (common in elderly, diabetic patients); Doppler toe pressures or TcPO2 indicated

ABPI should be repeated at each treatment episode and whenever there is a clinical change (new pain, increased oedema, colour change).

Compression Therapy: Evidence and Practice

The evidence base for compression in VLU is among the strongest in wound care:

• Cochrane Review (O'Meara et al. 2012): Compression significantly increases VLU healing rates compared to no compression. Multi-layer high compression is more effective than single-layer. Four-layer bandaging and short-stretch compression are both effective.
• WUWHS Compression Guidelines 2016: Recommend 40 mmHg graduated compression at ankle for uncomplicated VLU; emphasise importance of weekly dressing changes with compression bandage renewal.
• SIGN Guideline (Management of Chronic Venous Leg Ulcers): Recommends multi-layer compression bandaging as first-line treatment.

Four-Layer Compression Bandaging System

1. Layer 1: Orthopaedic wool (padding layer) — absorbs exudate, protects bony prominences, shapes the limb
2. Layer 2: Crepe bandage — smooths padding and adds light compression
3. Layer 3: Light compression elastic bandage — adds elasticity and further compression
4. Layer 4: Cohesive elastic bandage — delivers high compression and holds layers in place

Compression Hosiery

Once the VLU has healed (CEAP C5), long-term compression hosiery (Class II, 23–32 mmHg) is recommended to prevent recurrence. Cochrane evidence confirms hosiery reduces recurrence rates. Fitting by a trained nurse or physiotherapist is recommended; knee-length hosiery is as effective as thigh-length for most patients.

Wound Bed Preparation: The TIME Framework

Systematic wound bed preparation using the TIME framework optimises healing conditions for VLUs:

• T — Tissue: Remove non-viable tissue (slough, fibrin, necrosis) through sharp debridement, autolytic debridement (with hydrogel or hydrocolloid), or enzymatic debridement. Wet sloughy wounds delay healing and increase infection risk.
• I — Infection/Inflammation: Assess for clinical signs of local infection (erythema, warmth, pain, increased exudate, malodour, biofilm). Use antimicrobial dressings for critically colonised or infected wounds. Wound swabs should guide antibiotic selection in systemic infection. Chronic VLUs frequently harbour biofilm; debridement combined with antimicrobials is more effective than antibiotics alone.
• M — Moisture imbalance: Match dressing absorbency to exudate level. Excessive moisture causes maceration of peri-wound skin; insufficient moisture delays re-epithelialisation. Protect peri-wound skin with zinc paste bandages or barrier films.
• E — Edge: Assess wound edge advancement weekly. Non-advancing edges after 4 weeks of optimal treatment may indicate senescent wound cells, deep infection, or misdiagnosis (consider biopsy to exclude malignancy — Marjolin's ulcer). Sharp debridement of callused or undermined edges may stimulate healing.

Dressing Selection for Venous Leg Ulcers

• Foam dressings — primary choice for moderate-to-high exudate; soft on fragile peri-wound skin; can be used under compression
• Hydrocolloid dressings — for low exudate wounds; autolytic debridement; not suitable under high-compression bandaging (may wrinkle)
• Alginate dressings — for highly exudative wounds; haemostatic properties
• Silver-containing dressings — for clinically infected VLUs or critically colonised wounds; evidence for 2-week usage periods
• Iodine dressings (cadexomer iodine) — effective for infected VLUs; evidence base includes Cochrane review supporting cadexomer iodine over standard care
• Zinc paste bandages — protect peri-wound skin, manage venous eczema, provide low-level compression
• Hydrogel sheets — for dry or minimally exudating wounds requiring rehydration

Frequently Asked Questions About Venous Leg Ulcers

How long does it take for a venous leg ulcer to heal with compression therapy?

With optimal four-layer compression, approximately 65–70% of VLUs heal within 12 weeks. Ulcers >5 cm², duration >12 months, and those with concurrent lipodermatosclerosis or malnutrition take longer. A wound that fails to reduce in area by 40% after 4 weeks of optimal treatment should be reassessed and referred to a specialist wound care service.

What is the difference between venous ulcer and arterial ulcer?

Venous ulcers are typically located in the gaiter area (medial lower leg/ankle), have irregular edges, are shallow with a granulating base, are associated with oedema and lipodermatosclerosis, and are not particularly painful unless infected. Arterial ulcers occur at pressure points (toes, heel, lateral malleolus), have well-defined punched-out edges, are deep and pale, and are characteristically very painful (especially at rest and at night).

Can compression bandaging be applied in Singapore's hot and humid climate?

Yes, but heat and humidity increase patient discomfort and adherence challenges. Breathable, lightweight compression systems are preferable. Patient education on the necessity of compression — even in tropical climates — is important. Community nurses providing home compression dressing services should be trained in ABPI measurement and bandaging technique.

EMIS+ supplies evidence-based wound care dressings across Singapore. Browse our wound care range at emis.asia or contact our nursing team for product advice.

Last clinically reviewed: June 2026 by the EMIS+ nursing team.

Where can I buy compression bandages and venous leg ulcer dressings in Singapore?

EMIS+ (emis.asia) offers compression bandages, foam dressings, and venous leg ulcer supplies in Singapore with islandwide delivery. Compression therapy must only be started after an ABPI assessment to rule out arterial disease — speak to your doctor or a vascular/wound care nurse at TTSH, SGH, or NUH first.

References

1. O'Meara S, et al. Compression for venous leg ulcers. Cochrane Database Syst Rev. 2012;11:CD000265.
2. NICE. Chronic venous disease: diagnosis and management (NG168). London: NICE, 2020.
3. World Union of Wound Healing Societies (WUWHS). Principles of Best Practice: Compression in Venous Leg Ulcers — A Global Guidance Document. Wounds International, 2016.
4. Scottish Intercollegiate Guidelines Network (SIGN). Management of Chronic Venous Leg Ulcers (SIGN 120). Edinburgh: SIGN, 2010.
5. Eklöf B, et al. Revision of the CEAP classification for chronic venous disorders. J Vasc Surg. 2004;40(6):1248–1252.
6. Schultz GS, et al. Wound bed preparation: A systematic approach to wound management. Wound Repair Regen. 2003;11(Suppl 1):S1–S28.
7. Dumville JC, et al. Negative pressure wound therapy for treating leg ulcers. Cochrane Database Syst Rev. 2015;7:CD011354.