Blister (nonthermal) of right shoulder, sequela

This code describes a non-burn related blister formation on the right shoulder. It indicates that the blister is a residual effect or complication of a previous injury or condition, rather than an acute, ongoing process.

Apply this code when documenting a patient presenting with a blister on their right shoulder that is clearly identified as a long-term consequence of an earlier event. This is appropriate for follow-up encounters where the blister is a sequela, not the initial injury.

• Always code the underlying cause of the blister as a primary diagnosis, if known and applicable.
• Ensure documentation clearly states the blister is a "sequela" or "late effect" to justify this specific code.
• Verify laterality (right shoulder) is accurately documented in the patient's medical record.