ICD Code M00.80

ICD code M00.80 is arthritis caused by a bacterial infection (other than the most common types), affecting an unspecified joint.

1. Patient presents with signs and symptoms of arthritis, such as joint pain, swelling, redness, and limited range of motion.

2. Clinical evaluation and diagnostic testing indicate the arthritis is caused by a bacterial infection.

3. The specific bacterial organism responsible for the infection is identified as other than the most common types (e.g., not Staphylococcus or Streptococcus species).

4. The affected joint is not specified or cannot be determined based on available clinical information.

5. There is no evidence of viral, fungal, or non-infectious causes for the arthritis.

6. Laboratory findings may include elevated inflammatory markers (e.g., ESR, CRP), positive bacterial cultures, or imaging consistent with infectious arthritis.

7. The diagnosis is confirmed by a healthcare provider based on clinical judgment and supporting diagnostic data.

Relevant CPT codes that may be used to treat ICD code M00.80 include:

- 20610: Arthrocentesis, aspiration and/or injection; major joint or bursa (e.g., shoulder, hip, knee, subacromial bursa)

- 20611: Arthrocentesis, aspiration and/or injection; major joint or bursa, with ultrasound guidance

- 27370: Injection of contrast for knee arthrography

- 29870: Arthroscopy, knee, diagnostic, with or without synovial biopsy

- 29871: Arthroscopy, knee, surgical; for infection, lavage and drainage

- 99213–99215: Established patient office or other outpatient visit (for evaluation and management)

- 99221–99223: Initial hospital care, per day, for the evaluation and management of a patient

CPT code selection should be based on the specific procedure performed and clinical documentation.

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