Corros 2nd deg mul sites of r shldr/up lmb, ex wrs/hnd, init

This code signifies a second-degree chemical burn affecting multiple areas of the patient's right shoulder and upper arm, excluding the wrist and hand. This type of injury involves damage through the epidermis and into the dermis, characterized by blistering, pain, and redness.

Apply this code for initial encounters when a patient presents with chemical burns that meet the specified degree and anatomical location. This includes injuries from strong acids, alkalis, or other corrosive substances affecting the right shoulder and/or upper arm.

• Ensure the documentation clearly specifies "second degree" and "corrosion" (chemical burn) to support this code.
• Verify that the affected areas are multiple sites within the right shoulder and upper limb, excluding the wrist and hand.
• Confirm this is the initial encounter for this specific injury; subsequent care would require a different seventh character.