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M22.2X9
ICD-10-CM
Patellofemoral Pain Syndrome

Find information on Patellofemoral Pain Syndrome diagnosis, including clinical documentation, medical coding, ICD-10 codes (M22.2), CPT codes for evaluation and management (99201-99215) and procedures, and healthcare resources. Learn about anterior knee pain, chondromalacia patella, runner's knee, and retropatellar pain documentation requirements for accurate medical billing and coding. This resource provides guidance for physicians, coders, and healthcare professionals dealing with patellofemoral pain syndrome.

Also known as

Runner's Knee
Anterior Knee Pain
pfps

Diagnosis Snapshot

Key Facts
  • Definition : Pain around or behind the kneecap (patella), often worse with activity.
  • Clinical Signs : Anterior knee pain, crepitus, pain with stairs or prolonged sitting, tenderness around patella.
  • Common Settings : Primary care, sports medicine, orthopedics, physical therapy.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC M22.2X9 Coding
M22.2

Patellofemoral pain syndrome

Pain in the front of the knee between the kneecap and thigh bone.

M25.56

Pain in patellofemoral joint

Localized pain specifically in the patellofemoral joint.

M17

Gonarthrosis

Degenerative joint disease of the knee, which can contribute to patellofemoral pain.

M25.86

Other joint derangements of knee

Includes various knee joint problems that may cause patellofemoral pain syndrome.

Code-Specific Guidance

Decision Tree for

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

Is the patellofemoral pain due to instability?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Anterior knee pain, often related to overuse.
Cartilage softening behind kneecap, often from repetitive stress.
Irritation where patellar tendon attaches to tibia.

Documentation Best Practices

Documentation Checklist
  • Patellofemoral pain syndrome diagnosis documented
  • Anterior knee pain details, location, onset
  • Crepitus, stiffness, swelling noted if present
  • Pain with squatting, stairs, prolonged sitting
  • Exclusion of other knee pathologies documented

Coding and Audit Risks

Common Risks
  • Unspecified Laterality

    Coding Patellofemoral Pain Syndrome without specifying right, left, or bilateral can lead to claim denials and inaccurate data reporting. Use M20.11, M20.12, or M20.13.

  • Chondromalacia Coding

    Chondromalacia is often a component of PFPS, avoid coding it separately unless documented as a distinct diagnosis. Incorrect coding may impact reimbursement.

  • Documentation Deficiency

    Insufficient documentation lacking specifics about pain location, onset, and characteristics can hinder accurate coding and CDI for PFPS. Conduct thorough clinical evaluations.

Mitigation Tips

Best Practices
  • Document patellar alignment, crepitus, pain location for accurate ICD-10 coding (M22.2).
  • CDI: Specify onset, laterality, and activity limitations for PFPS diagnosis. Ensure V71.8 code if asymptomatic.
  • Assess and document prior treatments, imaging, contributing factors for compliance and medical necessity.
  • Use standardized pain scales (e.g., VAS, NPRS) and functional assessments for consistent PFPS documentation.
  • Clearly differentiate PFPS from other knee diagnoses (e.g., chondromalacia, osteoarthritis) in documentation.

Clinical Decision Support

Checklist
  • 1. Anterior knee pain: Reproduce pain with squatting?
  • 2. Patellar grind test or apprehension test positive?
  • 3. Ruled out other knee pathologies (X-ray/MRI if needed)?
  • 4. Assess contributing factors: biomechanics, overuse?
  • 5. Document exam findings, diagnosis code (ICD-10 M22.2)

Reimbursement and Quality Metrics

Impact Summary
  • Patellofemoral Pain Syndrome Reimbursement: Maximize claims with accurate ICD-10 M22.2 and CPT 97140 coding for optimal payment.
  • Coding Accuracy Impact: Precise coding of PFPS minimizes denials, improves revenue cycle, and ensures accurate hospital reporting.
  • Quality Metrics Impact: Proper PFPS documentation and coding impacts quality scores tied to pain management and functional outcomes.
  • Hospital Reporting Impact: Accurate PFPS data supports resource allocation, treatment effectiveness analysis, and quality improvement initiatives.

Streamline Your Medical Coding

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

Quick Tips

Practical Coding Tips
  • Code primary PFPS diagnosis M22.2
  • Specify laterality: right, left, bilateral
  • Document pain location, onset, character
  • Consider activity limitations, exam findings
  • Exclude other knee diagnoses for specificity

Documentation Templates

Patient presents with complaints consistent with patellofemoral pain syndrome (PFPS), also known as anterior knee pain or runner's knee.  The patient reports experiencing pain localized to the anterior aspect of the knee, specifically around the patella.  Onset of pain is reported as [insidious/acute], with [duration] duration.  Pain is described as [aching/sharp/burning/throbbing] and is exacerbated by activities such as stair climbing, prolonged sitting, squatting, and running.  Patient denies any specific mechanism of injury or trauma.  Physical examination reveals [positive/negative] patellar apprehension test, [positive/negative] Clarke's sign, and [normal/abnormal] patellar tracking.  Crepitus [present/absent].  Range of motion of the knee is [within normal limits/limited] with [degrees] of flexion and [degrees] of extension.  Strength testing reveals [normal/decreased] strength in the quadriceps and hip abductors.  No signs of effusion or instability are noted.  Diagnosis of patellofemoral pain syndrome is made based on clinical presentation and physical examination findings.  Differential diagnoses considered include chondromalacia patellae, patellar tendinopathy, and prepatellar bursitis.  Treatment plan includes conservative management with physical therapy focusing on quadriceps and hip strengthening exercises, patellar taping or bracing for pain relief, and activity modification.  Patient education provided regarding proper biomechanics and avoidance of aggravating activities.  Follow-up scheduled in [number] weeks to assess response to treatment.  ICD-10 code M25.561, Patellofemoral pain syndrome, is assigned.