Anesthesia Coding Alert

Reader Question:

Diagnosis M51.16 Covers the Symptoms of M51.26

Question: A payer has denied our claim for a pain management office visit with the reason “Missing/Incomplete/Invalid principal diagnosis.” One of the billers is telling me that M51.16 and M51.26 cannot be billed together, but I’ve never seen anything stating this. There is an Excludes 1 for M51.1x, but I don’t see anything for M51.2x. Who is right?

Louisiana Subscriber

Answer: Your billing staff person is correct. When a patient has a herniated/displaced disc treated with radiculopathy, the correct ICD-10 diagnosis code is M51.16 (Intervertebral disc disorders with radiculopathy, lumbar region). This is a combination diagnosis code and includes the diagnosis associated with M51.26 (Other intervertebral disc displacement, lumbar region).

You should only report M51.16 on the claim.  


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