Palindromic rheumatism, left shoulder

This code signifies a diagnosis of palindromic rheumatism affecting the left shoulder. Palindromic rheumatism is a rare, episodic inflammatory arthritis characterized by recurrent, self-limiting attacks of joint pain and swelling, often migrating between different joints, without permanent joint damage.

Use this code when documentation explicitly states a diagnosis of palindromic rheumatism localized to the left shoulder joint. This diagnosis is typically made based on clinical presentation, exclusion of other inflammatory arthropathies, and sometimes serological markers.

• Ensure the documentation clearly specifies "palindromic rheumatism" and not another form of inflammatory arthritis.
• Verify the laterality is precisely documented as "left shoulder" to support this specific code.
• Do not use this code for other forms of inflammatory arthritis, such as rheumatoid arthritis or psoriatic arthritis, even if presenting with episodic symptoms.