- Understanding the 2026 BIM Blueprint
- Domain 1: Central Nervous System Manifestations (30%)
- Domain 2: Cognitive and Behavioral Dysfunction (20%)
- Domain 3: Psychiatric Manifestations (15%)
- Domain 4: Pain and Sleep Disorders (15%)
- Domain 5: Soft Tissue and Orthopedic Conditions (5%)
- Domain 6: Systemic Manifestations (15%)
- How Etiology Cross-Classification Works
- Exam Format, Registration & Fees
- Mapping a Study Timeline to Domain Weight
- FAQ
- Central Nervous System Manifestations is the single largest domain at 30% of the 2026 blueprint.
- Cognitive and Behavioral Dysfunction is second at 20%; three domains tie for third at 15% each.
- The six domains are cross-classified by etiology, so questions blend manifestation with cause.
- The 2026 blueprint replaced the 2022 outline after ABPN's April 9, 2026 announcement.
Understanding the 2026 BIM Blueprint
The Certification in Brain Injury Medicine (BIM) examination is a joint effort between the American Board of Psychiatry and Neurology (ABPN) and the American Board of Physical Medicine and Rehabilitation (ABPMR). ABPMR develops and administers the shared examination content at Pearson VUE test centers, while candidates apply through whichever board holds their primary certification. If you're just starting to research the credential, our overview of what BIM certification actually involves and the companion piece on BIM Certification are useful starting points before you dig into domain-level detail.
ABPN announced an updated content outline on April 9, 2026, built from a 2025 practice analysis. That update replaced the older 2022 outline, so any prep material still referencing the previous breakdown is out of date. The 2026 blueprint organizes the entire exam into six manifestation domains that together account for 100% of scored content. Each domain is also cross-classified by etiology, meaning the same clinical manifestation can be tested against different underlying causes of brain injury.
| Domain | Weight | Relative Rank |
|---|---|---|
| Central Nervous System Manifestations | 30% | 1st |
| Cognitive and Behavioral Dysfunction | 20% | 2nd |
| Psychiatric Manifestations | 15% | Tied 3rd |
| Pain and Sleep Disorders | 15% | Tied 3rd |
| Systemic Manifestations | 15% | Tied 3rd |
| Soft Tissue and Orthopedic Conditions | 5% | 6th |
Domain 1: Central Nervous System Manifestations (30%)
Central Nervous System Manifestations is the anchor domain of the entire exam, carrying nearly a third of all scored questions. This is where candidates are tested on the direct neurological consequences of brain injury: focal deficits, seizure and post-traumatic epilepsy management, disorders of consciousness, spasticity and movement abnormalities, cranial nerve dysfunction, autonomic dysregulation, and imaging correlates of diffuse axonal injury, contusion, and hemorrhage.
Central Nervous System Manifestations
Because this domain is the largest single block, candidates should expect it to appear across nearly every testing hour rather than in one concentrated section.
- Localization of deficits to specific cortical, subcortical, and brainstem structures
- Management of post-traumatic seizures versus prophylactic anticonvulsant use
- Disorders of consciousness terminology: coma, vegetative/unresponsive wakefulness, minimally conscious state
- Spasticity assessment scales and escalation from oral agents to intrathecal baclofen or chemodenervation
- Autonomic dysfunction, including paroxysmal sympathetic hyperactivity recognition
Given its weight, this domain deserves the most dedicated review time in any study plan, and it is the domain most likely to include image- or video-based items, since the format allows multimedia stimuli.
Domain 2: Cognitive and Behavioral Dysfunction (20%)
Cognitive and Behavioral Dysfunction is the second-largest domain and covers the neurocognitive and behavioral sequelae that define much of day-to-day brain injury rehabilitation practice: attention and processing speed deficits, executive dysfunction, memory impairment, agitation, disinhibition, and the trajectory of recovery from post-traumatic amnesia.
Cognitive and Behavioral Dysfunction
Expect questions that ask you to interpret cognitive testing patterns and select appropriate behavioral or pharmacologic management strategies.
- Rancho Los Amigos-style recovery staging and appropriate interventions at each stage
- Differentiating cognitive fatigue, apathy, and depression in a post-injury patient
- Behavioral management hierarchies for agitation, from environmental modification to pharmacologic escalation
- Return-to-work and return-to-learn cognitive readiness considerations
Combined, Domains 1 and 2 make up half of the entire scored exam, so mastery of these two areas has an outsized effect on your overall result.
Domain 3: Psychiatric Manifestations (15%)
Psychiatric Manifestations sits in the tied-for-third tier at 15%. This domain tests recognition and management of mood, anxiety, and personality changes following brain injury, along with the diagnostic overlap and differentiation challenges that arise when psychiatric symptoms mimic or mask neurological ones.
Psychiatric Manifestations
- Post-injury depression and anxiety screening and treatment selection
- Personality change and disinhibition versus pre-existing psychiatric comorbidity
- Psychotropic medication selection with attention to seizure threshold and cognitive side effects
- Suicide risk assessment specific to the brain injury population
Because ABPN's standard eligibility pathway already requires primary certification in psychiatry, neurology, or neurology with special qualification in child neurology, this domain often feels most familiar to psychiatry-trained candidates and least familiar to those coming from a purely physiatric background.
Domain 4: Pain and Sleep Disorders (15%)
Pain and Sleep Disorders is another 15% domain and covers chronic post-traumatic headache, central and neuropathic pain syndromes, and the sleep-wake disturbances that are extremely common after brain injury, including insomnia, circadian rhythm disruption, and sleep-disordered breathing.
Pain and Sleep Disorders
- Differentiating migrainous, tension-type, and cervicogenic post-traumatic headache
- Central neuropathic pain mechanisms and first-line versus second-line pharmacologic options
- Sleep architecture changes after traumatic brain injury and appropriate screening tools
- Interaction between pain management, sedating medications, and cognitive recovery
Domain 5: Soft Tissue and Orthopedic Conditions (5%)
Soft Tissue and Orthopedic Conditions is the smallest domain at only 5%, but it should not be skipped entirely. It covers musculoskeletal complications of brain injury and concurrent trauma: heterotopic ossification, contractures, fractures sustained at the time of injury, and overuse or immobility-related orthopedic issues that develop during prolonged rehabilitation stays.
Soft Tissue and Orthopedic Conditions
- Recognition and staging of heterotopic ossification
- Contracture prevention and management in the immobile or spastic patient
- Concurrent orthopedic trauma screening in polytrauma brain injury patients
Because this domain represents such a small share of the exam, a brief, high-yield review rather than a deep dive is the efficient approach.
Domain 6: Systemic Manifestations (15%)
Systemic Manifestations rounds out the tied-for-third tier at 15% and covers the body-wide medical complications that brain injury physicians must manage beyond the nervous system itself: endocrine dysfunction, cardiopulmonary complications, autonomic and cardiovascular instability, nutrition and swallowing issues, and genitourinary or bowel dysfunction.
Systemic Manifestations
- Post-traumatic hypopituitarism and other endocrine screening indications
- Dysphagia evaluation and aspiration risk management
- Neurogenic bladder and bowel program design
- Cardiopulmonary complications common in the acute and subacute recovery periods
Because Systemic Manifestations, Psychiatric Manifestations, and Pain and Sleep Disorders each carry identical weight, candidates often gain the most efficiency by studying these three domains as a linked block rather than treating them as isolated topics.
How Etiology Cross-Classification Works
One of the most distinctive features of the BIM blueprint is that the six manifestation domains are cross-classified by etiology. In practice, this means a single question testing, say, seizure management under Domain 1 might specify the cause as traumatic brain injury, anoxic injury, stroke, or another etiology, and the correct management approach can shift depending on that cause. Candidates who study manifestations in isolation without connecting them to etiology-specific nuances often miss items that test this intersection directly.
Key Takeaway
Don't just learn "what to do for seizures after brain injury." Learn how management differs across traumatic, anoxic, vascular, and other etiologies, since the exam tests manifestation and cause together.
This cross-classification is also why question stems tend to be detailed clinical vignettes rather than isolated fact recall. A thorough BIM Study Guide 2026: How to Pass on Your First Attempt will walk through etiology-specific distinctions domain by domain, which is far more efficient than trying to reconstruct that mapping from scratch during your own review.
Exam Format, Registration & Fees
Understanding domain weight only matters if you also understand the mechanics of the test day itself. The BIM exam consists of 280 single-best-answer multiple-choice questions, including an unscored pretest subset, delivered across two sections of three hours and thirty minutes each - seven testing hours total, plus a scheduled 60-minute break and additional tutorial and check-in time. Most questions offer four response options, and some include images or video, particularly in the Central Nervous System Manifestations domain. The test is closed-book, and while you can review your answers within a section, you cannot return to a section once you've submitted it.
Passing is criterion-referenced, not curved against other test-takers, so your score depends on your own performance against a fixed standard rather than how the cohort performs. For a deeper breakdown of what that standard means numerically, see BIM Passing Score 2026: Exactly What You Need to Pass.
| Registration Route | Fee Structure |
|---|---|
| ABPN examination fee | $1,900 (plus $500 late-application surcharge) |
| ABPMR application route | $2,000 total ($1,400 exam fee + $600 processing fee) |
| ABPN annual fee - 1 certificate | $175 |
| ABPN annual fee - 2 certificates | $240 |
| ABPN annual fee - 3+ certificates | $310 |
The next BIM exam administration is scheduled for October 29, 2026, with the following administration in 2028. ABPN's exam schedule, updated June 1, 2026, lists an application window opening December 1, 2025, a regular deadline of March 13, 2026, and a late deadline of March 20, 2026. For the full comparison of these two registration paths, read BIM Certification Cost 2026: Complete Pricing Breakdown and BIM Exam Dates 2026: Testing Windows, Deadlines & Scheduling. Since ABPN and ABPMR run parallel application routes with different fee structures for the same shared exam, it's worth reading our dedicated comparison at BIM Requirements 2026: Eligibility, Prerequisites & How to Qualify before you decide which board to apply through.
Standard eligibility requires maintained primary certification in psychiatry, neurology, or neurology with special qualification in child neurology, unrestricted medical licensure, and one year of ACGME-accredited brain injury medicine fellowship training. The former practice-pathway entry route ended after 2022, so a fellowship is now the standard route in. If you're evaluating whether that training investment makes sense for your career, our guides on BIM Training and Is the BIM Certification Worth It? Complete ROI Analysis 2026 cover that decision in more depth.
Mapping a Study Timeline to Domain Weight
Generic study techniques only become useful once they're anchored to the specific weight of each BIM domain. Rather than dividing your available weeks evenly across six domains, allocate time proportional to blueprint weight, with built-in review passes for the domains that overlap in content.
Central Nervous System Manifestations
- Build etiology-specific management tables for seizures, spasticity, and disorders of consciousness
- Review imaging correlates likely to appear as visual stimuli
Cognitive and Behavioral Dysfunction
- Drill recovery staging and behavioral escalation pathways
- Practice vignettes distinguishing cognitive versus psychiatric symptom overlap
Psychiatric Manifestations
- Focus on psychotropic selection nuances specific to brain injury patients
Pain and Sleep Disorders
- Pair headache and sleep content with related CNS material from Weeks 1-3
Systemic Manifestations + Soft Tissue and Orthopedic Conditions
- Combine these lower-weight domains into a single focused review block
This kind of weighted sequencing is exactly what a well-built BIM Study Guide 2026: How to Pass on Your First Attempt is designed to enforce, and running timed practice sets through our practice test platform after each block helps confirm whether a domain is genuinely mastered before you move on. If you're still unsure how demanding this exam is relative to the time you have available, How Hard Is the BIM Exam? Complete Difficulty Guide 2026 puts the format and pass data into context.
Frequently Asked Questions
Most candidates start with Central Nervous System Manifestations since it carries 30% of the exam, the largest single weight of any domain, and its content overlaps with several other domains including Pain and Sleep Disorders.
The published weights (30%, 20%, 15%, 15%, 15%, and 5%) reflect the overall blueprint proportions rather than a guarantee of identical item counts on every individual form, but they are the best available guide for allocating study time.
It means each manifestation domain can be tested against multiple underlying causes of brain injury, so a question about a manifestation like seizures or agitation may require etiology-specific management knowledge rather than a single generic answer.
Yes. ABPN announced an updated blueprint on April 9, 2026 based on a 2025 practice analysis, which candidates should use instead of the older 2022 outline.
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