NCCI edits for 01999 Code page: https://localishealth.com/cpt/01999 NCCI release: 2026 D Source: https://www.cms.gov/medicare/coding-billing/national-correct-coding-initiative-ncci-edits NOT SEPARATELY PAYABLE TOGETHER—NO NCCI-ASSOCIATED MODIFIER BYPASSES THE EDIT (modifier indicator 0) 36591 01999 is Column One, 36591 is Column Two—36591 denies 36592 01999 is Column One, 36592 is Column Two—36592 denies 96523 01999 is Column One, 96523 is Column Two—96523 denies BILLABLE TOGETHER ONLY WHEN AN NCCI-ASSOCIATED MODIFIER IS APPROPRIATE (modifier indicator 1) MUE units per patient per date of service: not published