Modifier Description Level II
CN100 percent impaired, limited or restricted
CPAdjunctive service related to a procedure assigned to a comprehensive ambulatory payment classification (c-apc) procedure, but reported on a different claim
CRCatastrophe/disaster related
CSItem or service related, in whole or in part, to an illness, injury, or condition that was caused by or exacerbated by the effects, direct or indirect, of the 2010 oil spill in the gulf of mexico, including but not limited to subsequent clean-up activities
CTComputed tomography services furnished using equipment that does not meet each of the attributes of the national electrical manufacturers association (nema) xr-29-2013 standard
DAOral health assessment by a licensed health professional other than a dentist
E1Upper left, eyelid
E2Lower left, eyelid
E3Upper right, eyelid
E4Lower right, eyelid
EAErythropoetic stimulating agent (esa) administered to treat anemia due to anti-cancer chemotherapy
EBErythropoetic stimulating agent (esa) administered to treat anemia due to anti-cancer radiotherapy
ECErythropoetic stimulating agent (esa) administered to treat anemia not due to anti-cancer radiotherapy or anti-cancer chemotherapy
EDHematocrit level has exceeded 39% (or hemoglobin level has exceeded 13.0 g/dl) for 3 or more consecutive billing cycles immediately prior to and including the current cycle
EEHematocrit level has not exceeded 39% (or hemoglobin level has not exceeded 13.0 g/dl) for 3 or more consecutive billing cycles immediately prior to and including the current cycle
EJSubsequent claims for a defined course of therapy, e.g., epo, sodium hyaluronate, infliximab
EMEmergency reserve supply (for esrd benefit only)
EPService provided as part of medicaid early periodic screening diagnosis and treatment (epsdt) program
ETEmergency services
EXExpatriate beneficiary
EYNo physician or other licensed health care provider order for this item or service
F1Left hand, second digit
F2Left hand, third digit
F3Left hand, fourth digit
F4Left hand, fifth digit