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Official Description

Injection, anterior chamber of eye (separate procedure); medication

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 66030 involves the injection of medication into the anterior chamber of the eye, which is a specific area located behind the cornea and in front of the iris and lens. This chamber is filled with a clear, watery fluid known as aqueous humor, which plays a crucial role in maintaining intraocular pressure and providing nutrients to the eye. The injection is performed as a separate procedure and is commonly referred to as an intracameral injection. During this procedure, the patient is typically positioned supine, ensuring that the head and neck are adequately supported for optimal access to the eye. Prior to the injection, a topical ophthalmic anesthetic is applied to minimize discomfort, and the eye is cleansed with an antiseptic solution to reduce the risk of infection. An eyelid speculum is then utilized to keep the eyelids open, allowing for better visibility and access to the injection site. The specific site for the injection is marked, and a fine needle attached to a syringe is carefully inserted through the cornea into the anterior chamber. Once the needle is in place, the medication is injected into the fluid-filled cavity, after which the needle is withdrawn. To further protect the eye and promote healing, antibiotic eye drops may be instilled, and the eye may be patched as part of the post-injection care. This procedure is essential for delivering medications directly to the anterior chamber, allowing for targeted treatment of various ocular conditions.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The injection of medication into the anterior chamber of the eye, as described by CPT® Code 66030, is indicated for various ocular conditions that require direct delivery of therapeutic agents. The following are explicitly provided indications for this procedure:

  • Intraocular Inflammation The procedure is performed to treat inflammation within the eye, which may be due to conditions such as uveitis or iritis.
  • Intraocular Pressure Management It is indicated for the management of elevated intraocular pressure, particularly in patients with glaucoma.
  • Postoperative Complications The injection may be utilized to address complications following ocular surgeries, such as cataract surgery.
  • Delivery of Medications It is indicated for the direct delivery of medications, such as corticosteroids or antibiotics, to the anterior chamber for localized treatment.

2. Procedure

The procedure for CPT® Code 66030 involves several critical steps to ensure the safe and effective injection of medication into the anterior chamber of the eye. The following procedural steps are outlined:

  • Step 1: Patient Positioning The patient is positioned supine, with their head and neck adequately supported to provide optimal access to the eye. This positioning is essential for the comfort of the patient and the success of the procedure.
  • Step 2: Anesthesia and Cleansing A topical ophthalmic anesthetic is applied to the eye to minimize discomfort during the injection. Following this, the eye is cleansed with an antiseptic solution to reduce the risk of infection at the injection site.
  • Step 3: Speculum Placement An eyelid speculum is placed to keep the eyelids open, allowing for better visibility and access to the anterior chamber. This step is crucial for ensuring that the procedure can be performed without obstruction.
  • Step 4: Marking the Injection Site The injection site is marked to ensure accurate placement of the needle. This step helps in guiding the injection and minimizing trauma to the surrounding tissues.
  • Step 5: Needle Insertion A fine needle attached to a syringe is carefully inserted through the cornea and into the anterior chamber. Precision is vital during this step to avoid damage to the eye structures.
  • Step 6: Medication Injection Once the needle is in the correct position, the medication is injected into the anterior chamber. This direct delivery method allows for targeted treatment of the ocular condition.
  • Step 7: Needle Withdrawal After the medication has been administered, the needle is withdrawn carefully from the eye to minimize any potential trauma.
  • Step 8: Post-Injection Care Following the injection, antibiotic eye drops may be instilled to prevent infection, and the eye may be patched to protect it during the initial healing phase.

3. Post-Procedure

After the injection procedure described by CPT® Code 66030, patients may experience some temporary discomfort or irritation in the eye. It is important for healthcare providers to monitor the patient for any signs of complications, such as increased redness, swelling, or changes in vision. Patients are typically advised to avoid rubbing their eyes and to follow any specific post-procedure care instructions provided by their healthcare provider. The use of antibiotic eye drops may continue for a prescribed duration to prevent infection. Follow-up appointments may be scheduled to assess the effectiveness of the treatment and to monitor the patient's recovery and overall ocular health.

Short Descr INJECTION TREATMENT OF EYE
Medium Descr INJX ANTERIOR CHAMBER EYE MEDICATION SPX
Long Descr Injection, anterior chamber of eye (separate procedure); medication
Status Code Active Code
Global Days 010 - Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P4E - Eye procedure - other
MUE 1
CCS Clinical Classification 20 - Other intraocular therapeutic procedures
RT Right side (used to identify procedures performed on the right side of the body)
LT Left side (used to identify procedures performed on the left side of the body)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
SG Ambulatory surgical center (asc) facility service
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
GW Service not related to the hospice patient's terminal condition
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
54 Surgical care only: when 1 physician or other qualified health care professional performs a surgical procedure and another provides preoperative and/or postoperative management, surgical services may be identified by adding modifier 54 to the usual procedure number.
55 Postoperative management only: when 1 physician or other qualified health care professional performed the postoperative management and another performed the surgical procedure, the postoperative component may be identified by adding modifier 55 to the usual procedure number.
73 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure prior to the administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may cancel a surgical or diagnostic procedure subsequent to the patient's surgical preparation (including sedation when provided, and being taken to the room where the procedure is to be performed), but prior to the administration of anesthesia (local, regional block(s) or general). under these circumstances, the intended service that is prepared for but cancelled can be reported by its usual procedure number and the addition of modifier 73. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
AG Primary physician
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CR Catastrophe/disaster related
E3 Upper right, eyelid
E4 Lower right, eyelid
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
JZ Zero drug amount discarded/not administered to any patient
KX Requirements specified in the medical policy have been met
Q5 Service furnished under a reciprocal billing arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2002-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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