Systemic Sclerosis (SSc) Skin Involvement and Organ Damage Score

Calculates the Medsger Severity Scale for systemic sclerosis across general, peripheral vascular (Raynaud, digital ulcers), skin (mRSS), joint/tendon, muscle, GI, pulmonary, cardiac, and renal domains.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculates the Medsger Severity Scale for systemic sclerosis across general, peripheral vascular (Raynaud, digital ulcers), skin (mRSS), joint/tendon, muscle, GI, pulmonary, cardiac, and renal domains

Each component has a specific meaning:

  • General — The general recorded for the patient or scenario being assessed.
  • Peripheral vascular (Raynaud — The peripheral vascular (raynaud recorded for the patient or scenario being assessed.
  • Digital ulcers) — The digital ulcers) recorded for the patient or scenario being assessed.
  • Skin — The skin recorded for the patient or scenario being assessed.
  • Joint/tendon — The joint/tendon recorded for the patient or scenario being assessed.
  • Muscle — The muscle recorded for the patient or scenario being assessed.

Note: Interpret the ssc organ score result against the clinical thresholds and context described above.

How to Use

Enter the general, peripheral vascular (Raynaud, digital ulcers), skin, joint/tendon, muscle for the patient or scenario you are assessing. Calculates the Medsger Severity Scale for systemic sclerosis across general, peripheral vascular (Raynaud, digital ulcers), skin (mRSS), joint/tendon, muscle, GI, pulmonary, cardiac, and renal domains. Use the ssc organ score result to inform your clinical assessment.

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Frequently Asked Questions