polychondritis

DEFINITION of polychondritis

Relapsing Polychondritis (RP) is a chronic, systemic autoimmune disease of unknown etiology with a tendency to recur in episodic flares.  The body’s immune system mistakenly attacks its own cartilage tissue, leading to inflammation and subsequent degeneration. While it can affect any cartilage, it has a predilection for specific areas. Key manifestations include: Auricular Chondritis: The most common sign, presenting as sudden, severe pain, redness, and swelling of the cartilage of one or both outer ears (pinnae), the earlobes. Recurrent episodes can lead to deformities known as “cauliflower ear” or “floppy ear”. Nasal Chondritis: The second most common manifestation, causing pain, swelling, and redness over the bridge of the nose. It can lead to the collapse of the nasal bridge, resulting in a “saddle nose deformity” . Arthritis: Joint inflammation is common, ranging from mild joint pain (arthralgia) to a non-erosive, asymmetric, or symmetric inflammatory arthritis, often affecting the costochondral joints (where ribs meet the sternum) and knees. Respiratory Tract Involvement: Inflammation of the larynx, trachea, and bronchi is a serious complication. It can cause hoarseness, cough, and tenderness. Severe inflammation can lead to cartilage collapse, resulting in shortness of breath (dyspnea) and life-threatening airway obstruction. Ocular Involvement: The eyes can be affected in various ways, including episcleritis, scleritis, keratitis, and iritis. Other Systems: Less commonly, the disease can impact heart valves, blood vessels (vasculitis), skin, and kidneys. The disease affects men and women equally, with a typical onset in middle age. It is sometimes associated with other systemic rheumatic diseases like rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE).

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ETYMOLOGY of polychondritis

greek - Polychondritis: Derived from Greek roots. “Poly-” (πολύς, polús) means “many” or “multiple,” referring to the involvement of multiple cartilage sites. “Chondr-” (χόνδρος, chóndros) means “cartilage.” “-Itis” (from -ῖτις, -îtis) denotes “inflammation.” Thus, “polychondritis” literally means “inflammation of multiple cartilages.”

• Relapsing: From Latin “relapsus” (past participle of “relabi,” meaning “to slip back”), indicating the recurrent or episodic nature of the disease flares.
• The full term “relapsing polychondritis” was first coined in 1960 by Pearson et al. to describe the condition’s chronic, recurring pattern, building on earlier descriptions of “panchondritis” or “systemic chondromalacia” in the 1920s.

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Related Medical Terms

• Chondritis: Inflammation of a single area of cartilage.
• Auricular Chondritis: Inflammation of the cartilage of the ear.
• Saddle Nose Deformity: A collapse of the nasal bridge, often a complication of nasal chondritis.
• Cauliflower Ear: A deformity of the ear caused by trauma or inflammation leading to cartilage necrosis and fibrosis.
• Autoimmune Disease: A condition in which the body’s immune system attacks its own tissues.
• vasculitis: Inflammation of blood vessels, which can be a feature of polychondritis.
• scleritis: Inflammation of the sclera (the white outer layer of the eyeball).
• episcleritis: Inflammation of the episclera, a thin layer of tissue between the sclera and conjunctiva.
• arthralgia: Pain in a joint.

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CODING AND NUANCES

⚕️ ICD-10 Codes

• M94.1: Relapsing polychondritis (primary diagnosis code).
• M94.111: Chondromalacia, right shoulder (Note: Region-specific cartilage breakdown).
• H61.13: Chondritis of pinna (external ear), bilateral.
• J38.7: Diseases of vocal cords (due to laryngeal involvement).
• M32.9: Systemic lupus erythematosus (SLE) if associated.

💼 CPT Codes

• 88305: Biopsy of cartilage (e.g., auricular/nasal histopathology).
• 70498: CT scan of head/neck (assess laryngotracheal damage).
• 92511: Nasopharyngoscopy (evaluate airway involvement).
• 95000+: Autoantibody panels (e.g., RF, ANA, anti-type II collagen antibodies).
• 96413: Chemotherapy administration for immunosuppressants (e.g., cyclophosphamide).
• 11102: Tangential biopsy of skin (e.g., for ear or nasal cartilage biopsy; full code is 11102, often with add-ons like +11103 for additional lesions).
• 31551: Laryngoplasty; for subglottic stenosis repair (common complication; full 5-character code).
• 31600: tracheostomy, planned (for airway management in severe cases; full 5-character code).
• 99214: Office or other outpatient visit for evaluation and management (E/M code for ongoing care; level 4 established patient).
• 96365: Intravenous infusion, for hydration, therapeutic, prophylactic, or diagnostic injection (e.g., for administering immunosuppressants like infliximab; full 5-character code).

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DERIVATIONS of polychondritis

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Med roots Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms