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Official Description

Actinotherapy (ultraviolet light)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Actinotherapy, commonly known as phototherapy, is a medical treatment that utilizes ultraviolet light, specifically UVA or UVB wavelengths, to address various skin conditions. This therapeutic approach involves the careful exposure of the affected area of the skin to ultraviolet light, which is selected based on the specific characteristics of the condition being treated. The procedure is designed to harness the beneficial effects of ultraviolet light, which can help reduce inflammation, alleviate symptoms, and promote healing in certain dermatological disorders. The duration of exposure to the light is determined by the healthcare provider, taking into account the patient's individual needs and the nature of the skin condition. Overall, actinotherapy is a targeted treatment option that aims to improve skin health through controlled exposure to ultraviolet light.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

Actinotherapy is indicated for the treatment of various skin conditions that may benefit from ultraviolet light exposure. The following conditions are commonly treated with this procedure:

  • Psoriasis A chronic autoimmune condition characterized by the rapid growth of skin cells, leading to scaling and inflammation.
  • Atopic Dermatitis A type of eczema that causes itchy, inflamed skin, often associated with allergies and asthma.
  • Vitiligo A skin disorder that causes loss of pigmentation, resulting in white patches on the skin.
  • Seborrheic Dermatitis A common skin condition that causes scaly patches, red skin, and stubborn dandruff.
  • Acne A skin condition that occurs when hair follicles become clogged with oil and dead skin cells, leading to pimples and cysts.

2. Procedure

The actinotherapy procedure involves several key steps to ensure effective treatment while minimizing risks. The following outlines the procedural steps:

  • Step 1: Patient Preparation The patient is positioned comfortably, and the area of the skin condition is exposed. Protective eyewear may be provided to shield the eyes from ultraviolet light.
  • Step 2: Selection of Wavelength The healthcare provider selects the appropriate wavelength of ultraviolet light (UVA or UVB) based on the specific skin condition being treated and the patient's individual response to previous treatments.
  • Step 3: Exposure The selected area is exposed to the ultraviolet light for a predetermined duration, which is carefully monitored to avoid overexposure. The duration of exposure is tailored to the patient's needs and the severity of the condition.
  • Step 4: Post-Exposure Care After the exposure, the treated area may be assessed for any immediate reactions. The healthcare provider may provide instructions for post-treatment care, including moisturizing the skin and avoiding sun exposure.

3. Post-Procedure

Following actinotherapy, patients may experience some mild redness or irritation in the treated area, which is typically temporary. It is important for patients to follow any post-procedure care instructions provided by their healthcare provider, which may include applying soothing lotions or creams to the skin. Patients are also advised to avoid direct sun exposure and to use sunscreen on the treated areas to protect the skin. Regular follow-up appointments may be scheduled to monitor the effectiveness of the treatment and make any necessary adjustments to the therapy plan.

Short Descr ACTINOTHERAPY UV LIGHT
Medium Descr ACTINOTHERAPY ULTRAVIOLET LIGHT
Long Descr Actinotherapy (ultraviolet light)
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 5 - Incident To Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - 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 STV-Packaged Codes
Type of Service (TOS) 1 - Medical Care
Berenson-Eggers TOS (BETOS) P6C - Minor procedures - other (Medicare fee schedule)
MUE 1
CCS Clinical Classification 174 - Other non-OR therapeutic procedures on skin and breast
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.
SA Nurse practitioner rendering service in collaboration with a physician
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.)
AM Physician, team member service
CR Catastrophe/disaster related
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
24 Unrelated evaluation and management service by the same physician or other qualified health care professional during a postoperative period: the physician or other qualified health care professional may need to indicate that an evaluation and management service was performed during a postoperative period for a reason(s) unrelated to the original procedure. this circumstance may be reported by adding modifier 24 to the appropriate level of e/m service.
25 Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service: it may be necessary to indicate that on the day a procedure or service identified by a cpt code was performed, the patient's condition required a significant, separately identifiable e/m service above and beyond the other service provided or beyond the usual preoperative and postoperative care associated with the procedure that was performed. a significant, separately identifiable e/m service is defined or substantiated by documentation that satisfies the relevant criteria for the respective e/m service to be reported (see evaluation and management services guidelines for instructions on determining level of e/m service). the e/m service may be prompted by the symptom or condition for which the procedure and/or service was provided. as such, different diagnoses are not required for reporting of the e/m services on the same date. this circumstance may be reported by adding modifier 25 to the appropriate level of e/m service. note: this modifier is not used to report an e/m service that resulted in a decision to perform surgery. see modifier 57 for significant, separately identifiable non-e/m services, see modifier 59.
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.
95 Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system.
GC This service has been performed in part by a resident under the direction of a teaching physician
GP Services delivered under an outpatient physical therapy plan of care
GW Service not related to the hospice patient's terminal condition
Q6 Service furnished under a fee-for-time compensation 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
X3 Episodic/broad services: for reporting services by clinicians who have broad responsibility for the comprehensive needs of the patient that is limited to a defined period and circumstance such as a hospitalization; reporting clinician service examples include but are not limited to the hospitalist's services rendered providing comprehensive and general care to a patient while admitted to the hospital
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
Date
Action
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2025-01-01 Changed Short Description changed.
Pre-1990 Added Code added.
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