ICD-10 Code: 8E090EM


  • CPT Code
    • 64999 Unlisted Procedure, nervous system
    • 76499 Unlisted Procedure, radiographic procedure
  • Modifier
    • 22
  • The codes must be used during dictation of the case.
Section 8 Other Procedures
Body System E Physiological Systems and Anatomical Regions
Operation 0 Other Procedures: Methodologies which attempt to remediate or cure a disorder or disease
Body Region Approach Method Qualifier
1 Nervous System X External Y Other Method 7 Examination
2 Circulatory System 3 Percutaneous D Near Infrared Spectroscopy Z No Qualifier
9 Head and Neck Region 0 Open C Robotic Assisted Procedure Z No Qualifier
9 Head and Neck Region 0 Open E Fluorescence Guided Procedure M Aminolevulinic Acid
Z No Qualifier


Medicare no longer pays separately for drugs that are provided in the hospital inpatient setting, and those drugs used for inpatient hospital beneficiaries are included in the prospective payment system (PPS) rates for the respective diagnosis. The use of Gleolan is packaged into the procedure payment rate (DRG), and because Gleolan is packaged into the rate and not bundled, hospitals should continue to bill for Gleolan to ensure charges accurately reflect what is being used.  


Private Commercial

Some managed care organizations reimburse separately for drugs when billed with a procedure.


The CPT code presented above is for informational purposes only. No statement, promise, or guarantee concerning coverage and/or levels of reimbursement, payment, or charge are represented, and this information is not intended to increase or maximize reimbursement by any payer. It is the responsibility of the healthcare provider to determine the appropriate code(s) for service provided to his or her patient. This information may not be current or comprehensive when you view it. Please consult the applicable payer organization regarding local or actual coverage, reimbursement policies, and determination processes

NXDC Reimbursement Helpline is available to all institutions to provide further information on Gleolan coverage reimbursement. The Helpline can be reached at 1-833-433-9833

Important Safety Information


Do not use Gleolan in patients with:

  • hypersensitivity to aminolevulinic acid (ALA) or porphyrins
  • acute or chronic types of porphyria

Warnings and Precautions

Due to the risk of phototoxic reactions, do not administer phototoxic drugs and topical preparations containing ALA for 24 hours during the perioperative period. Reduce exposure to sunlight or room lights for 48 hours after administration of Gleolan.

Errors may occur with the use of Gleolan for intraoperative visualization of malignant glioma, including false negatives and false positives. Non-fluorescing tissue in the surgical field does not rule out the presence of tumor in patients with glioma. Fluorescence may be seen in areas of inflammation or metastases from other tumor types.

Hypersensitivity reactions, including serious hypersensitivity reactions have occurred; these reactions include anaphylactic shock, swelling, and urticaria. Always have cardiopulmonary resuscitation personnel and equipment readily available and monitor all patients for hypersensitivity reactions.

Adverse Reactions

Adverse reactions occurring in >1% of patients in the week following surgery were pyrexia, hypotension, nausea, and vomiting.

Nervous system disorders occurred in 29% of patients within the first week after surgery and events occurring in >1% of patients included: aphasia (8%), hemiparesis (7.8%), hemianopsia (3.2%), headache (2.7%), seizure (1.9%), hemiplegia (1.9%), monoparesis (1.3%) and hypoesthesia (1.1%). Brain edema occurred in <1% of patients in the first 6 weeks after surgery. In a randomized clinical trial, the numbers of serious neurologic adverse events in the post operative period were higher in patients randomized to ALA fluorescence arm compared to the control arm. An imbalance was notable for the adverse events aphasia, ataxia, convulsion and hemianopsia and is likely related to the higher amount of brain resection performed in the ALA arm. At longer follow up periods, the numbers between the two arms appeared similar.

Worsening of >2 Common Toxicity Criteria grades in alanine aminotransferase and gamma-glutamyl transferase occurred in 15.8% and 11.6% of patients, respectively, within the first week after surgery. Absolute levels ranged from 2 times to greater than 10 times the upper limit of normal for each parameter. At 6 weeks, these measurements remained elevated in 2.9% and 7.5% of patients, respectively. There were no cases of liver failure.

Drug-Drug Interactions

See information under Warnings and Precautions regarding phototoxic reactions.

Please see Full Prescribing Information

For medical inquires, please fill out our Medical Information Request Form.


Important Safety Information


Do not use Gleolan in patients with:

  • hypersensitivity to aminolevulinic acid (ALA) or porphyrins
  • acute or chronic types of porphyria