Medicare Claims Processing Manual (Pub. 100-04), Ch. 18 § 60.5
Noncovered Services
60.5 - Noncovered Services
(Rev. 10818; Issued: 05-20-21; Effective: 01-09-21; Implementation: 10-04-21)
The following non-covered HCPCS codes are used to allow claims to be billed and denied for
beneficiaries who need a Medicare denial for other insurance purposes for the dates of service
indicated:
A. From January 1, 1998, through June 30, 2001, Inclusive
Code G0121 (colorectal cancer; colonoscopy on an individual not meeting criteria for high risk)
should be used when this procedure is performed on a beneficiary who does not meet the criteria
for high risk. This service should be denied as non-covered because it fails to meet the
requirements of the benefit for these dates of service. The beneficiary is liable for payment. Note
that this code is a covered service for dates of service on or after July 1, 2001.
B. On or After January 1, 1998
Code G0122 (colorectal cancer; barium enema) should be used when a screening barium enema is
performed not as an alternative to either a screening colonoscopy (code G0105) or a screening
flexible sigmoidoscopy (code G0104). This service should be denied as non-covered because it
fails to meet the requirements of the benefit. The beneficiary is liable for payment.