Hospitals report these codes with terse, inconsistent chargemaster text. This plain-English title was written by an AI model from that text and has not been reviewed by a person, so it can be wrong. The prices on this page come straight from hospital filings and do not depend on it.
Original text from hospital filings
IMMUNOGLOBULIN LIGHT CHAINS FR
Chesterfield, MO
See all hospitals reporting CPT 83521 →Price type
Mercy Rehabilitation Hospital St. Louis’s median price of $435 is 1578% above the median hospital's median price ($26), higher than 100% of the 2,313 hospitals reporting CPT 83521. The highlighted bar is where this hospital falls; shaded is the middle 50% of hospitals.
Last updated: Mar 16, 2026
See Immunoglobulin free light chains test pricing across every hospital in the network reporting it, or ask Claude or any MCP client directly — see how to connect.