Other bursal cyst, right hand

This code describes a non-inflammatory, fluid-filled sac that forms within or adjacent to a bursa in the right hand. These cysts are typically benign and can arise from chronic irritation, trauma, or degenerative changes, leading to localized swelling and sometimes discomfort.

Use this code for documented cases of a bursal cyst located specifically in the right hand. Documentation should clearly identify the presence of a cyst and its anatomical location in the right hand, often confirmed by physical examination and imaging studies like ultrasound or MRI.

• Ensure documentation specifies "right hand" to avoid laterality errors.
• Distinguish from ganglion cysts (M67.4-) which originate from joint capsules or tendon sheaths, not bursae.
• Do not use for inflammatory bursitis (M70.-) unless a distinct, non-inflammatory cyst is also present and documented.