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S93.409A
ICD-10-CM
Sprain Ankle

Find information on sprained ankle diagnosis, including clinical documentation, medical coding, ICD-10 codes for ankle sprain, treatment, and rehabilitation. Learn about lateral ankle sprain, syndesmotic sprain, and other ankle injuries. This resource covers proper healthcare documentation for ankle sprains and relevant medical coding terminology for accurate billing and insurance claims. Explore details on ankle sprain diagnosis codes, symptoms, and best practices for healthcare professionals.

Also known as

Ankle Sprain
Twisted Ankle

Diagnosis Snapshot

Key Facts
  • Definition : Stretching or tearing of ankle ligaments.
  • Clinical Signs : Pain, swelling, bruising, limited range of motion, instability.
  • Common Settings : Sports injuries, falls, awkward stepping on uneven surfaces.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC S93.409A Coding
S93.4

Sprain of ankle

Injury to ankle ligaments causing pain and swelling.

S93

Other injuries to the ankle and foot

Includes various ankle and foot injuries, excluding fractures.

S00-T98

Injury, poisoning and certain other

Encompasses injuries, poisonings, and external causes.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the ankle sprain specified as initial encounter?

  • Yes

    Right ankle?

  • No

    Subsequent encounter?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Ankle sprain
Ankle strain
Ankle fracture

Documentation Best Practices

Documentation Checklist
  • Laterality (left or right)
  • Specific anatomical location
  • Mechanism of injury
  • Grade of sprain (if applicable)
  • Clinical findings (e.g., swelling, ecchymosis)

Coding and Audit Risks

Common Risks
  • Laterality Unspecified

    Missing documentation of right or left ankle sprain leads to unspecified codes, impacting reimbursement and data accuracy. Medical coding and CDI should query for laterality.

  • Severity Miscoding

    Inaccurate coding of sprain severity (mild, moderate, severe) based on exam findings affects healthcare compliance and appropriate resource allocation. CDI should review documentation for proper severity coding.

  • Associated Injury

    Failure to code associated injuries (fracture, ligament tear) with the ankle sprain leads to underreporting of complexity for medical coding and audit purposes. CDI should ensure accurate capture of all injuries.

Mitigation Tips

Best Practices
  • RICE therapy: Rest, Ice, Compression, Elevation
  • Document detailed physical exam: ROM, tenderness, edema
  • ICD-10 accurate coding: S93.401A initial encounter
  • Prompt imaging if needed: Rule out fracture (X-ray)
  • Patient education: Crutches, bracing, follow-up care

Clinical Decision Support

Checklist
  • Ottawa Ankle Rules applied?
  • Lateral malleolus tenderness?
  • Medial malleolus tenderness?
  • Weight-bearing assessment documented?
  • Pain with palpation of base 5th metatarsal?

Reimbursement and Quality Metrics

Impact Summary
  • Sprain Ankle: Coding accuracy impacts reimbursement for ICD-10 S03.4, S03.5, or S03.6. Proper documentation crucial.
  • Accurate Ankle Sprain diagnosis coding improves hospital quality reporting metrics for patient safety and outcomes.
  • Missed sprains or miscoded severity affect reimbursement and orthopedic surgery quality data. Review documentation.
  • Ankle sprain coding impacts payor contracts and value-based care. Accurate ICD-10 and CPT coding essential.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code laterality: sprain left ankle
  • ICD-10: S03.4XXA initial encounter
  • Document injury mechanism, severity
  • X-ray if fracture suspected
  • Consider 7th character for acuity

Documentation Templates

Patient presents with complaints consistent with an ankle sprain. Onset of symptoms occurred on [Date of injury] during [Mechanism of injury - e.g., sports activity, twisting while walking, fall].  Patient reports [Symptom - e.g., pain, swelling, instability] in the [Location - e.g., lateral, medial, anterior] aspect of the [Affected - e.g., right, left] ankle.  Pain is characterized as [Character of pain - e.g., sharp, dull, aching, throbbing] and is [Severity of pain - e.g., mild, moderate, severe] in intensity, exacerbated by [Exacerbating factors - e.g., weight-bearing, palpation, range of motion] and alleviated by [Alleviating factors - e.g., rest, ice, elevation].  Physical examination reveals [Objective findings - e.g., edema, ecchymosis, tenderness to palpation, limited range of motion, instability].  Ottawa Ankle Rules were assessed, and [Result of Ottawa Ankle Rules - e.g., radiographs were indicated, radiographs were not indicated].  [Imaging results, if applicable - e.g., Radiographs of the ankle were negative for fracture].  Assessment: Ankle sprain, [Laterality - e.g., right, left], [Grade of sprain if determined - e.g., Grade I, Grade II, Grade III].  Differential diagnosis includes fracture, tendon injury, and ligament tear. Plan:  RICE therapy (rest, ice, compression, elevation) is recommended.  Patient is instructed on ankle sprain treatment, including pain management with [Pain medication prescribed - e.g., ibuprofen, acetaminophen].  [Assistive device if applicable - e.g., Crutches, ankle brace] are prescribed.  Follow-up appointment scheduled in [Duration - e.g., one week, two weeks] to assess healing progress and discuss physical therapy referral if necessary.  Patient education provided regarding activity modification, weight-bearing precautions, and potential complications. ICD-10 code: [Appropriate ICD-10 code, e.g., S93.401A, S93.402A].