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M10.9
ICD-10-CM
Gout Arthritis

Find comprehensive information on Gout Arthritis diagnosis, including ICD-10 codes (M10.x), clinical documentation requirements, differential diagnosis, and medical coding guidelines. Learn about tophi, hyperuricemia, monosodium urate crystals, and acute gouty arthritis management for accurate healthcare records and optimized billing. Explore resources for physicians, coders, and healthcare professionals seeking information on Gout Arthritis diagnosis, treatment, and documentation best practices.

Also known as

Gouty Arthritis
Podagra

Diagnosis Snapshot

Key Facts
  • Definition : Inflammatory arthritis caused by uric acid crystal deposits in joints.
  • Clinical Signs : Sudden, severe joint pain, swelling, redness, warmth, often in the big toe.
  • Common Settings : Primary care, rheumatology, urgent care, emergency room.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC M10.9 Coding
M10.0-M10.9

Gout

Gouty arthropathy and related conditions.

M1A.0-M1A.9

Idiopathic gout

Gout caused by unknown factors, not secondary to other conditions.

M11.0-M11.9

Other crystal arthropathies

Joint disorders due to crystals other than urate, such as calcium pyrophosphate.

Code-Specific Guidance

Decision Tree for

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

Is the gout idiopathic?

  • Yes

    Is the gout chronic?

  • No

    Is the gout due to lead?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Gout arthritis
Pseudogout
Septic arthritis

Documentation Best Practices

Documentation Checklist
  • Gout arthritis diagnosis documentation checklist:
  • 1. Acute onset joint pain: Location, duration, intensity.
  • 2. Presence of tophi: Document size, location, appearance.
  • 3. Serum uric acid levels: Include date and result.
  • 4. Synovial fluid analysis: Urate crystals confirmation.
  • 5. Response to NSAIDs or colchicine: Document efficacy.

Coding and Audit Risks

Common Risks
  • Unspecified Gout

    Coding gout as unspecified (M10.9) when documentation supports a more specific location (e.g., M10.0 for great toe) leads to inaccurate severity and impacts reimbursement.

  • Tophus Miscoding

    Confusing tophus (M1A.0) with other inflammatory arthritis manifestations can lead to incorrect coding, affecting quality reporting and resource allocation.

  • Stage of Gout

    Lack of documentation specifying acute (M10.x) vs. chronic gouty arthritis (M1A.0) causes coding ambiguity, impacting clinical documentation improvement (CDI) efforts.

Mitigation Tips

Best Practices
  • Document serum urate levels, ICD-10 M10, for accurate gout diagnosis.
  • Capture acute/chronic gout stage, medications, tophi presence for CDI.
  • Ensure compliant coding for gout flares with 7th character specificity.
  • Query physician for joint involvement details and laterality for optimal reimbursement.
  • Review medical necessity for urate lowering therapies per payer guidelines.

Clinical Decision Support

Checklist
  • 1. Acute monoarticular arthritis: Verify inflamed joint distribution (ICD-10 M10.9)
  • 2. Serum urate elevation: Document uric acid level (LOINC 2947-0)
  • 3. Synovial fluid analysis: Confirm monosodium urate crystals (SNOMED CT 23382005)
  • 4. Response to NSAIDs/colchicine: Document treatment efficacy and patient safety

Reimbursement and Quality Metrics

Impact Summary
  • Gout Arthritis Reimbursement: ICD-10 M10.*, CPT 20600-20611 impacts based on severity, laterality, and procedures. Coding accuracy crucial for optimal reimbursement.
  • Quality metrics: Gout management, pain control (PROMIS-10 pain interference), patient education on diet and medication adherence affect hospital reporting.
  • Impact: Undercoding or unspecified diagnosis leads to lower reimbursement. Accurate coding and documentation vital for maximizing revenue.
  • Impact: Effective gout management programs linked to higher patient satisfaction scores and improved quality reporting metrics.

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 M10.x for gout, specify site
  • Document acute/chronic status
  • Use tophi code (M10.2) if present
  • Look for 7th character for laterality
  • Confirm hyperuricemia diagnosis

Documentation Templates

Patient presents with acute onset of monoarticular inflammatory arthritis, consistent with gout.  The patient reports severe pain, redness, swelling, and tenderness in the right great toe (podagra), which began acutely overnight.  Symptoms include limited range of motion and warmth at the affected joint.  Patient denies fever or chills.  On physical examination, marked erythema, edema, and exquisite tenderness are noted in the right first metatarsophalangeal joint.  The patient's past medical history includes hyperuricemia and hypertension.  Family history is positive for gout.  Differential diagnosis includes septic arthritis, pseudogout, and rheumatoid arthritis.  Serum uric acid level is elevated.  Synovial fluid analysis is consistent with gout, demonstrating negatively birefringent monosodium urate crystals.  Diagnosis of acute gouty arthritis is confirmed.  Treatment plan includes initiation of NSAID therapy with indomethacin for pain and inflammation management.  Colchicine is prescribed for acute flare prophylaxis.  Patient education provided on lifestyle modifications including dietary adjustments to limit purine-rich foods, increased hydration, and weight management.  Follow-up appointment scheduled to monitor treatment response and discuss long-term urate-lowering therapy options such as allopurinol or febuxostat for prevention of future gout attacks.  ICD-10 code M10.001 assigned for right great toe gout.  CPT codes for evaluation and management services and joint aspiration documented.
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