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ICD-10-CM · L97.509GeneralSystemic

Ulcer Foot

Find comprehensive information on ulcer foot diagnosis, including clinical documentation, ICD-10 codes (diabetic foot ulcer, arterial ulcer, venous ulcer), treatment options, and healthcare guidelines. Learn about proper wound care, assessment, and medical coding for ulcer foot conditions. Explore resources for healthcare professionals, clinicians, and coders seeking accurate and up-to-date information on ulcer foot management and documentation.

Also known as
Diabetic Foot UlcerChronic Foot Ulcer
Definition

Open sore on the foot caused by poor circulation, nerve damage, or pressure.

Clinical signs

Redness, swelling, pain, drainage, numbness, tingling, slow-healing wounds.

Common settings

Diabetes, peripheral artery disease, neuropathy, immobility, poorly fitting shoes.

Related Codes

ICD-10 Code Families

Complete code families applicable to L97.509

L97
Non-pressure chronic ulcer of lower leg
E10-E14
Diabetes mellitus
I70-I79
Diseases of arteries, arterioles and capillaries
Z13
Encounter for screening for other diseases and conditions
Code Comparison

When to use each related code

DescriptionWhen to use
Ulcer, footOpen skin lesion on the foot, any etiology. Specify location and cause if known.
Diabetic foot ulcerFoot ulcer in a patient with diabetes. Code underlying diabetes separately.
Peripheral vascular disease ulcerFoot ulcer due to impaired arterial blood flow. Code underlying PVD separately.
Documentation

Best-practice checklist

  • ✓Ulcer foot diagnosis: Document ulcer location.
  • ✓Specify ulcer size (length x width x depth) in cm.
  • ✓Document ulcer characteristics: exudate, color, odor.
  • ✓Note presence/absence of infection signs (e.g., erythema).
  • ✓ICD-10 code for ulcer foot: Include laterality.
Coding & Audit Risks

Common pitfalls to avoid

Unspecified Laterality

Coding ulcer foot without specifying right, left, or bilateral can lead to claim denials and inaccurate reporting. Impacts quality metrics and reimbursement.

Missing Etiology Code

Failing to code the underlying cause of the ulcer, such as diabetes or peripheral artery disease, hinders accurate severity reflection and care planning.

Stage of Ulcer Miscoded

Incorrectly documenting the ulcer stage (e.g., stage 1, 2, 3, 4, or unstageable) affects appropriate treatment and payment. CDI crucial for accurate staging.

Mitigation

Best-practice tips

  • 01Offload ulcer: total contact cast or custom footwear. ICD-10: L97.4
  • 02Debride necrotic tissue, control infection: proper wound care. CDI query for specificity.
  • 03Optimize blood glucose, HbA1c monitoring for diabetics. ICD-10: E11.65
  • 04Vascular assessment: ABI for PAD, revascularization if needed. HCC compliance.
  • 05Inspect, palpate regularly: document wound size, depth, appearance for accurate coding.
Clinical Decision Support

Step-by-step checklist

  1. 1

    Confirm ulcer location on foot: ICD-10 L97

  2. 2

    Assess ulcer depth/tissue involvement: Stage I-V

  3. 3

    Evaluate for infection signs (swelling, erythema, pus)

  4. 4

    Document peripheral pulses, sensation, ABI if available

  5. 5

    Review patient history: diabetes, PAD, neuropathy

Documentation Template

Ready-to-paste narrative

Patient presents with ulcer foot, consistent with diabetic foot ulcer or venous stasis ulcer.  Location of ulcer is documented as (insert location, e.g., plantar surface of right foot, medial malleolus of left leg).  Ulcer size is measured as (length) x (width) x (depth) cm.  Wound bed appearance is described as (e.g., granulating, sloughy, necrotic) with (amount) of exudate characterized as (e.g., serous, serosanguineous, purulent).  Surrounding skin is noted as (e.g., erythematous, edematous, indurated, macerated) with signs of infection (present or absent), including warmth, tenderness, or purulent drainage.  Peripheral pulses (e.g., dorsalis pedis, posterior tibial) are palpable (or non-palpable).  Neuropathy assessment reveals (e.g., diminished sensation to monofilament testing, absent ankle reflexes) indicating peripheral neuropathy.  Patient's current medications include (list medications).  Assessment suggests (e.g., diabetic foot ulcer, venous stasis ulcer, arterial ulcer).  Plan includes wound care with (e.g., debridement, dressings, offloading), vascular assessment if indicated, and optimization of glycemic control if diabetic.  Patient education provided on wound care, foot hygiene, and the importance of regular follow-up.  Differential diagnosis includes pressure ulcer, arterial insufficiency ulcer, and infectious ulcer.  ICD-10 code (e.g., L97.419 Ulcer of lower limb, unspecified, other) and CPT codes (e.g., 97597 for debridement) are documented for medical billing and coding purposes. Follow-up appointment scheduled in (duration) for ongoing wound management and assessment.

Clinical accuracy: This information is provided for documentation and coding guidance and should not replace professional medical judgment.

Coding standard: ICD-10-CM, current FY guidelines.

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