Medical Coverage Policy | Gender Reassignment Surgery
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Policy documents coverage and clinical criteria for gender reassignment surgery (GRS) for Medicare Advantage Plans and Commercial products, lists medically necessary procedures for transwomen and transmen, documentation requirements, prior authorization expectations, and CPT coding/billing instructions.
No material clinical or coverage changes noted in this update.
Coverage Summary
This policy covers Gender Reassignment Surgery (GRS) for Medicare Advantage Plans and Commercial products and sets the conditions under which specific procedures are considered medically necessary. Coverage stance is mixed: GRS procedures are covered when the plan includes the benefit and the individual meets the policy's documented medical necessity criteria; some procedures (e.g., hair removal for donor sites) are covered only in specified clinical circumstances while others are considered cosmetic and noncovered. Prior authorization is required for Medicare Advantage and recommended for Commercial plans to determine eligibility and benefit applicability.
Medical Necessity / Eligibility Criteria
General Eligibility / Medical Necessity
When a benefit for gender reassignment surgery exists, it is considered medically necessary when documentation confirms that all of the following criteria are met:
- Diagnosis: The individual has been diagnosed with the gender identity disorder (GID) or gender dysphoria of transsexualism
- Real-life experience: The individual has successfully lived and worked within the desired gender role full-time for at least 12 months (real-life experience) without returning to the original genderFull-time living and working in desired gender role for at least 12 months
Real-life experience requirement; letters should document extent of participation and others' awareness during the 12-month period
Documentation / Comprehensive Evaluation
Comprehensive evaluation is generally supported by the following documentation (letters and documentation requirements):
- Behavioral health letter: One letter from a behavioral health professional with a doctoral degree capable of evaluating co-morbid psychiatric conditions
Treating physician or behavioral health provider letter
- Team membership: Whether the author is part of a gender identity disorder treatment team
- Identifying characteristics: The candidate's general identifying characteristics
- Diagnoses: The initial and evolving gender, sexual, and other psychiatric diagnoses
- Duration and therapy type: The duration of professional relationship including type of psychotherapy or evaluation undergone
- Eligibility criteria met: The eligibility criteria that have been met by the candidate
- Rationale for surgery: The physician or mental health professional's rationale for surgery
- Treatment compliance: The degree to which the candidate has followed treatment and experiential requirements to date and the likelihood of future compliance
- Psychotherapy participation: The extent of participation in psychotherapy throughout the 12-month real-life trial (if recommended)
- Awareness by others during real-life trial: That during the 12-month real-life experience, persons other than the treating therapist were aware of the candidate's experience in the desired gender role and could attest to ability to function in the new role; for candidates not meeting 12-month eligibility the letter should comment on ability to function and experience in desired role
- Legal name change progress: That the candidate has, intends to, or is in process of acquiring a legal gender identity-appropriate name change
- Corroborating letter if same clinician: If the two required letters come from the same clinician, a corroborating letter from a second physician or behavioral health provider familiar with the candidate is required
- Surgeon documentation: A letter of documentation must be received from the treating surgeon; if surgeon authored one of prior letters, that letter must contain required surgeon-specific confirmations
Surgeon Letter Requirements
All letters from a treating surgeon must confirm the following:
- Eligibility confirmation: The candidate meets the eligibility criteria listed in this policy
- Benefit expected: The treating surgeon feels that the candidate is likely to benefit from surgery
- Communication with treating providers: The surgeon has personally communicated with the treating mental health provider or physician treating the candidate
- Patient understanding: The surgeon has personally communicated with the candidate and that the candidate understands the ramifications of surgery
DSM-5 / Diagnostic Criteria Context
DSM V criteria and related exclusionary points referenced as background for diagnosis:
- Duration and indicators: Discomfort with assigned sex or gender role for at least six months, as manifested by at least two specified indicators (a–f listed in policy)At least six months with two or more indicators
- Exclusionary conditions: The individual does not have an intersex or developmental condition
- Distress or impairment: The condition causes clinically significant distress or impairment in social, occupational, or other areas of functioning
- NOS note: 'Gender identity disorder not otherwise specified' includes individuals who cannot be diagnosed as having specific GID but experience distress/impairment
Coding and Billing
| 19301 | Mastectomy, partial |
| 19303 | Mastectomy, simple, complete |
| 19316 | Mastopexy |
| 19318 | Breast Reduction |
| 19324 | Mammaplasty, augmentation; without prosthetic implant |
| 19325 | Breast augmentation with implant |
| 19350 | Nipple/areola reconstruction |
| 31899 | Unlisted procedure, trachea, bronchi (trachea shave/reduction thyroid chondroplasty noted) |
| 53430 | Urethroplasty, reconstruction of female urethra |
| 54125 | Amputation of penis; complete |
| 17999 | Unlisted procedure, skin, mucous membrane and subcutaneous tissue (used for laser hair removal claims meeting coverage criteria) |
Provider Actions & Billing Rules
Preauthorization required for Medicare Advantage
Prior authorization is required for Medicare Advantage Plans to determine eligibility and benefit applicability; recommended for Commercial groups.
Submit required evaluation letters and surgeon documentation
Providers must submit behavioral health and treating physician letters documenting the items listed in the policy (diagnosis, duration, treatments, real-life experience, rationale, compliance) and a surgeon letter confirming eligibility, benefit, communication with treating providers, and patient understanding.
- Behavioral health letter from a doctoral-level clinician documenting psychological aspects of GID
- Treating physician or behavioral health provider letter (minimum 12 months of treatment or combined documentation) documenting: whether author is part of a GID treatment team; candidate demographics; initial and evolving diagnoses; duration and type of professional relationship; which eligibility criteria have been met; rationale for surgery; degree of compliance and likelihood of future compliance; extent of psychotherapy during 12-month real-life trial; that others were aware of the candidate’s real-life experience; status of legal name change
- Surgeon letter confirming: candidate meets policy eligibility criteria; surgeon believes candidate will benefit; surgeon has communicated with treating mental health provider/physician; surgeon has communicated with the candidate and that the candidate understands surgical ramifications
Background & Guidance References
The policy defines GRS as a multi-modality treatment for gender dysphoria that includes medical, psychiatric, and surgical interventions performed in conjunction to achieve successful behavioral and medical outcomes. It references DSM criteria (DSM‑V) for gender dysphoria and cites WPATH Standards of Care and the Endocrine Society guidelines as part of the supporting framework.
Emphasis is placed on comprehensive evaluation and documentation prior to irreversible surgery: patients typically undergo hormone therapy (commonly for 12 continuous months prior to surgery), must demonstrate a period of real-life experience (living and working full-time in the desired gender role for at least 12 months), and require corroborating behavioral health and treating physician documentation. The policy further requires that the treating surgeon confirm eligibility, discuss benefits and risks with the patient, and communicate with treating mental health or medical providers, and it recommends the surgeon have demonstrated competency with long-term follow-up.
Revision History
Policy effective date: Gender Reassignment Surgery medical coverage policy became effective.
Policy last updated/reviewed on this date.
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