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How to write a DID treatment plan

Learn how to create a DID treatment plan for adults with trauma-informed strategies, therapy options, safety planning, and support for long-term integration.

September 12, 2025

6 min read

Dissociative identity disorder (DID), previously known as multiple personality disorder and split personality disorder, is present when an individual has two or more separate identities. 

It can be difficult to find many resources for treating DID because only an estimated one percent of the population experiences it. There’s also often stigma, limited training, and systemic barriers related to the diagnosis.

Quality treatment that includes a structured, trauma-informed treatment plan is essential for long-term progress. Given the complexity of this diagnosis, it's imperative that you are adequately trained prior to engaging in the treatment of DID. It's also important to be informed of the symptoms of DID to refer out if necessary. This article provides an overview of evidence-based treatments for DID and an overarching framework for treatment planning. It is not intended to provide specific clinical guidance, but to provide guidance for understanding the importance of comprehensive care for this diagnosis.

What is Dissociative Identity Disorder?

DID is a rare and severe mental health disorder characterized by the presence of two or more “alters” or distinct identity states within a single person. This will often be characterized by noticeable shifts in affect, behavior, cognition, perception, memory, or sensory-motor functioning. Previously known as multiple personality disorder, this mental illness can be extremely debilitating. Though the impact varies widely with each individual, it can negatively affect a person's capacity to engage in relationships, work, school, and all activities of daily living. People with DID experience dissociative amnesia, or periods of "losing time.” While the cause of DID is not yet fully understood, it is very strongly believed to be caused by severe neglect and/or sexual, psychological, or physical trauma early on in childhood.


Here's how the DSM-5-TV defines dissociative identity disorder:

A. Disruption of identity characterized by two or more distinct personality states, which may be described in some cultures as an experience of possession. The disruption in identity involves marked discontinuity in sense of self and sense of agency, accompanied by related alterations in affect, behavior, consciousness, memory, perception, cognition, and/or sensory-motor functioning. These signs and symptoms may be observed by others or reported by the individual.

B. Recurrent gaps in the recall of everyday events, important personal information, and/or traumatic events that are inconsistent with ordinary forgetting.

C. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

D. The disturbance is not a normal part of a broadly accepted cultural or religious practice. Note: In children, the symptoms are not better explained by imaginary playmates or other fantasy play.

E. The symptoms are not attributable to the physiological effects of a substance (e.g., blackouts or chaotic behavior during alcohol intoxication) or other medical condition (e.g., complex partial seizures)

Trauma-informed treatment options for DID

There are multiple facets of a quality DID treatment plan. Research suggests that relying on a single approach is typically less effective. Here are some of the main components that can be part of a trauma-informed plan. 

Phase-oriented trauma therapy

Structured progression of trauma treatment is needed to ensure both stability and change for the client. According to evidence based practices, the three phases of trauma treatment are:

  1. Safety, stabilization, and symptom reduction
  2. Trauma processing and integration of memories
  3. Identity integration and rehabilitation 

Multidisciplinary care for comorbid symptoms

Comorbid diagnoses are common with DID, especially depression, anxiety, substance use disorders, and PTSD. Medication management and other services, such as case management, can help clients navigate these symptoms. 

With client consent, coordination with their medication prescriber or case manager may support symptom management. Clients may already have a team, or therapists can provide information on local or online resources if needed. If applicable, the symptoms of other disorders should be noted and tracked in the treatment plan. Support for these symptoms can be divided among the roles of a multidisciplinary treatment team.

Group therapy and peer support

According to research, formal group therapy can be of benefit to clients with DID primarily for improved psychosocial outcomes. For high acuity clients who are in crisis, therapists might refer them to groups for a higher level of care to reduce high-risk comorbid symptoms. For lower acuity clients, therapists can consider simply recommending outpatient therapy groups for the sense of community and psychosocial impact. It can be typical for a therapist to send one to three referrals, and, with client consent, coordinate with any formal group therapists. Local community mental health centers, online directories, and NAMI are good group resources to begin with.

Daily structure and grounding practices

Following a predictable daily structure can help with memory and an increased sense of control, while grounding skills can help reduce symptoms exasperated by stress and help individuals with DID feel connected to the reality around them. Grounding skills can include breathing exercises, movement, and moving attention towards tactile or auditory sensations. These skills can be practiced as often as is helpful to the client. 

Psychoeducation for DID systems

When treating clients with trauma, psychoeducation can help clients gain insight into their symptoms. Education can lead to normalization and better coping with DID. When a client better understands DID, the symptoms, their internal system, and coping skills to manage them, it can lead to better outcomes. However, it should go at the pace of client readiness, which you determine with the client and your clinical judgment. This tool can be used throughout treatment. 

Crisis planning for dissociation and switching

Signs of crisis in clients can include suicidal thoughts or gestures, self-harm, extreme impulsivity, increased impairment in day-to-day functioning, and/or increased and rapid switching between alters. When clients are in crisis, it's imperative to collaboratively assist clients to make a plan of action. This can include immediate next steps, internal coping strategies, external supports, and aftercare steps. External supports should include emergency contacts in cases where potential harm might be involved. Crisis plans should be individualized and evolve over time. 

Including safe, supportive relationships

DID likely forms in response to early, chronic childhood trauma, which can impact trust and attachment in core relationships. To counteract this, identifying and including people who are safe connections into the treatment plan can be important. If the client does not have safe relationships in their life, the treatment plan can include working towards building these relationships. The therapeutic relationship can also serve as a safe support that models secure attachment for the client.

Integrating trauma history with care

It is important when following a trauma-based treatment plan that discussions and treatment of trauma are handled with care. The treatment should follow a pace that the client can tolerate, which should be determined using client self disclosure and the therapist’s clinical judgment. If it is determined that things are moving too quickly, return to stabilization and grounding. 

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What to consider when creating a DID treatment plan

When creating a treatment plan for DID, it's important to consider the symptoms of your client, their current state and readiness for treatment, the individualized goals of the plan, and treatment approaches to be applied.

Comprehensive assessment and differential diagnosis

Aim to gather comprehensive information to get a clear picture of a client’s DID. It's important to distinguish DID from other mental health, neurological, and medical health disorders through differential diagnosis. Consider including a trauma-informed inquiry into dissociative symptoms in congruence with the DSM-V-TR.

Behavioral observations are useful, as well as research-validated assessments such as the SCID-D and DES that can be applied initially and over time as well. Multiple assessments can be valuable to give a clearer diagnostic picture. It is generally recommended that assessments be applied at a consistent cadence (i.e. 3 months), but can also be applied if there are any notable changes, such as moving to a different phase of treatment, or significant shifts in life circumstances or symptoms. If there's a signed release of information for a close loved one, that can also provide useful information. 

Once you have an initial clinical conceptualization, it will be important to diagnose the correct ICD-10 code for documentation and billing purposes.

Understanding the client’s internal system

Mapping out the client’s internal world with them should be part of the treatment plan. Understanding the unique identities, or “alters,” of the client is essential for working with them. Over time, through discussion, assessment, and observation, you will start to see the unique memories, experiences, roles, emotions, and physiological responses tied to each identity. These identities carry different responsibilities, such as self-protection or carrying traumatic memories from childhood. Exploring each different identity with understanding and respect can lead to developing trust with clients and their system. 

Goal setting with the system

Goal-setting with a DID client should be a compassionate and collaborative process. It can be helpful to incorporate the different parts into the planning process. Treatment plans, especially if treatment is being paid for by insurance, need to include SMART objectives that are specific, measurable, achievable, relevant, and time-bound. However, since DID clients are often affected by trauma and internal experiences, it can be helpful to have some flexibility for goals and objectives. Tracking ‌progress should be measurable, and not overly harsh. It's important to exude compassion for the often non-linear nature of client change. 

According to the ISSTD Journal of Trauma and Dissociation, some common overarching goals for DID include: fusion, where the client integrates into one identity, or integration (also known as functional multiplicity), in which multiple identities are maintained but life is lived with greater collaboration, stability, and well-being. The ISSTD emphasizes that fusion is the most complete resolution, however some clients may not be able to achieve this or desire to achieve this goal and thus opt for integration. As with all treatment, the ultimate goals should be determined by the client. 

Building a multidisciplinary support plan

Multiple angles of support are typically the most effective approach to DID. Creating a multidisciplinary team, each with their own role, can provide the necessary support. Psychotherapy, psychiatric medication management, case management, support services, medical evaluation, and a safety plan are all components that can be included in the plan if it's necessary and the resources are available. The collaboration should be documented in the plan. 

Developing a support team depends on the client’s goals, their current support already in place, and their capacity to initiate a search. If the client has existing people on their treatment team, such as a psychiatrist or case manager, it's important to get the client’s consent to interact with them and start collaborating. Clients without providers, but with motivation and knowledge of where to find them, may benefit from encouragement and accountability with their progress. Clients with no provider and no knowledge of where to find them, may benefit from assistance identifying suitable resources, such as local organizations or reputable online directories.

Regular check-ins and plan flexibility

Part of building trust over time is consistent check-ins with the client. These discussions can help to understand the progress so far and the response to the treatment plan. Flexibility is needed based on what the check-ins reveal. Changes in the treatment plan can be made based on client choices, preferences, and mitigation of the risk of overwhelming or retraumatizing the client. There should be room to view setbacks with the treatment plan not as failures, but as opportunities for growth and resilience. 

Sample DID treatment plan

Client Name: Jamie Smith

Therapist Name: Taylor Jones, LCSW

Date of Birth: 3/22/87

Date: 8/19/25

DIAGNOSIS CODE / NAME:

F44.81 Dissociative Identity Disorder

F43.10 Post-Traumatic Stress Disorder, Unspecified

MAIN PRESENTING SYMPTOMS:

Experiences frequent switching between identity states (alters), significant gaps in memory, sense of depersonalization, internal conflict between parts, and time loss. Reports persistent hypervigilance, sleep disturbance, nightmares, exaggerated startle response, intrusive traumatic memories, avoidance of reminders, and intense anxiety in public or unfamiliar places.

MODALITY PLANNED (Individual, Couples, Family, Group):

  • Individual
  • Collaboration with case manager and psychiatrist as part of the multidisciplinary team.

FREQUENCY AND DURATION OF SESSIONS PLANNED:

  • Weekly 60-minute individual therapy sessions.
  • Monthly care coordination meeting with case manager.
  • Monthly psychiatric appointments for medication management.

ESTIMATED LENGTH OF TREATMENT:

  • 2 years

TREATMENT GOALS & OBJECTIVES

PHASE 1: Stabilization/Safety

LONG-TERM GOAL #1:

  • Enhance overall safety and stabilization, reduce dissociative episodes, and lower hypervigilance so daily functioning improves and risk behaviors decrease.

ESTIMATED GOAL COMPLETION DATE:

  • 02/19/26

Objective 1:

  • Client will engage in at least 3 grounding and self-soothing techniques learned in treatment when experiencing dissociation or hypervigilance, at least 4x per week, as self-monitored in a journal.

Objective 2:

  • Client and therapist, with case manager support, will collaboratively develop and update a crisis/safety plan that includes internal system communication strategies, grounding practices, and emergency contacts; client will demonstrate ability to use the plan in sessions. Client will call 911 or present to the ED in an emergency.

PHASE 2: Processing (Trauma Work)

LONG-TERM GOAL #2:

  • Safely process traumatic memories at a manageable pace while minimizing destabilization and re-traumatization.

ESTIMATED GOAL COMPLETION DATE:

  • 01/19/27

Objective 1:

  • Client will collaborate with therapist and system to identify at least 2 traumatic memories for gradual processing using trauma-focused CBT, IFS, or EMDR strategies, with regular check-ins for stabilization before and after sessions.

Objective 2:

  • Client will verbalize feelings and share trauma-related thoughts with therapist and, as appropriate, trusted system members in at least 75% of processing sessions.

PHASE 3: Integration & Rehabilitation

LONG-TERM GOAL #3:

  • Support internal system cooperation and integration, improve daily functioning, relationships, and overall well-being.

ESTIMATED GOAL COMPLETION DATE:

  • 08/19/27

Objective 1:

  • Client will participate in monthly “internal meetings” (journaled or in session) and facilitate communication between at least two distinct system parts, with increased co-consciousness/self-awareness goals as tracked collaboratively.

Objective 2:

  • Client will engage in social, vocational, or recreational activities identified in care plan (developed with case manager) at least twice monthly, reporting reduced avoidance and anxiety (self-report and team confirmation).

Objective 3:

  • Client will collaborate with psychiatrist to regularly review and optimize medication regimen for anxiety, sleep, and mood, reporting improved sleep (target: 6+ hours nightly) and reduced daytime hypervigilance in at least 2 consecutive months.

Interventions/Approaches Used:

  • Phase-oriented trauma therapy (per ISSTD guidelines)
  • Grounding, mindfulness, distress tolerance, and emotion regulation (DBT/CPT skills)
  • EMDR and trauma-focused CBT for trauma processing
  • Collaborative safety planning (therapist, case manager, client)
  • Monthly medication review (psychiatrist)
  • Flexible goal reviews, and compassionate, client-paced progression

Build your best practice with Headway

Best practices tell us that treatment of dissociative identity disorder requires a phase oriented, trauma-informed approach tailored to each client’s unique internal system and needs. This approach takes patience, focus, and care. By streamlining your practice with a comprehensive EHR, AI-assisted notes templates, insurance billing, and credentialing, Headway helps providers overcome the minutia of running a practice so you can focus on delivering quality care.

This content is for general informational and educational purposes only and does not constitute clinical, legal, financial, or professional advice. All decisions should be made at the discretion of the individual or organization, in consultation with qualified clinical, legal, or other appropriate professionals.

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