NDD Cheat Sheet 2026: One-Page Review of Must-Know Facts

Quick Facts Snapshot

This cheat sheet is a single-page distillation of everything the NDD Certification requires, tested, and costs, built for candidates who need a fast final review rather than a full course. It is not a substitute for structured preparation - for that, see the full NDD Study Guide 2026 - but it is the page to bookmark and reread the week before your appointment.

Exam Format at a Glance

The NDD exam is a 200-question, computer-based, proctored assessment delivered at Pearson VUE testing centers. Unlike an open-ended written exam, every item maps to two overlapping frameworks simultaneously: sixteen content domains (Dimension 1) covering specific disorders and topics, and eight competency-based categories (Dimension 2) describing the type of clinical reasoning being tested. A single question about, say, a child with cerebral palsy and a feeding tube could sit in the Motor disabilities domain under Dimension 1 while also being scored under Clinical aspects of neurologic disease in Dimension 2.

This dual-mapping structure is easy to misunderstand. Candidates sometimes try to add domain percentages to competency percentages to "total 100% twice," but that is not how the blueprint works - the two dimensions are independent lenses on the same 200 items, not separate sections of the test. For a deeper breakdown of how this plays out question by question, the NDD Exam Domains 2026 guide walks through all sixteen areas individually.

Eligibility Checklist

Eligibility for the NDD exam is narrower than many candidates expect, and it has changed in recent cycles. As of this review, the requirements are:

• ABPN certification in Neurology with Special Qualification in Child Neurology, held by December 31 of the year preceding the exam
• Completion of an approved NDD training pathway
• An unrestricted medical license
• Both training and licensure requirements finalized by July 31 of the examination year

Two accepted training routes exist: the dedicated NDD training track, or a child-neurology residency followed by NDD fellowship training. Notably, ABP general pediatrics certification has not been a prerequisite since 2024 - a detail that trips up candidates researching older forum posts or outdated program descriptions. For the full walkthrough of documentation, timing, and edge cases, see NDD Requirements 2026: Eligibility, Prerequisites & How to Qualify.

The 16 Site Domains, Fast

Dimension 1 organizes the exam into sixteen content domains. Four of them tie for the heaviest weighting at 8-10% each: Genetic and developmental disorders, Cognitive disorders, Autism spectrum disorder, and Motor disabilities. Together these four alone can account for close to a third of the exam, which is why they deserve disproportionate study time relative to lower-weighted domains.

The remaining twelve domains range from 1-3% up to 7-9%, covering everything from Normal development and Learning disabilities to narrower areas like Epilepsy and episodic disorders and Neuroimmunologic and paraneoplastic CNS disorders. Even low-weighted domains such as Brain and spinal trauma or Disorders due to toxins, drugs, and physical agents still appear on every form, so skipping them entirely is risky. A domain-by-domain study allocation, not just a focus on the "big four," is what separates a thorough review from a rushed one - the complete domains guide covers all sixteen in the depth this cheat sheet can't.

Dimension 2 Competencies

Every question also maps to one of eight Dimension 2 competencies, which describe the skill being assessed rather than the disorder being tested:

• Neuroscience and mechanism of disease: 12-14%
• Clinical aspects of neurologic disease: 44-46%
• Diagnostic procedures: 14-16%
• Treatment/Management: 15-17%
• Interpersonal and communication skills: 3-5%
• Professionalism: 1-3%
• Practice-based learning and improvement: 1-3%
• Systems-based practice: 2-4%

Notice that Clinical aspects of neurologic disease alone accounts for nearly half the exam by this dimension. That means the bulk of your questions, regardless of which of the sixteen domains they draw from, will test recognition, differentiation, and clinical reasoning about neurologic disease presentations rather than pure mechanism or systems-level knowledge. Diagnostic procedures and Treatment/Management combined add another substantial share, reinforcing that the exam rewards applied clinical judgment over rote recall.

Fees, Deadlines, and Dates

The published initial subspecialty fee is $1,900 USD. Missing the regular deadline triggers a $500 late application fee, so calendar discipline matters as much as content mastery. For the next cycle, applications open December 22, 2026, the regular deadline is April 22, 2027, and the late deadline is April 29, 2027 - with the exam itself administered October 18-22, 2027.

These numbers move from year to year, so before you submit anything, cross-check the current cycle against NDD Exam Dates 2026: Testing Windows, Deadlines & Scheduling and NDD Certification Cost 2026: Complete Pricing Breakdown. Budgeting early also matters if your employer reimburses certification costs on a fiscal-year cycle rather than reimbursing on demand.

Scoring and Pass Rate Reality

Scoring is criterion-referenced, meaning you are measured against a fixed passing standard rather than against other candidates, and that standard is equated across different exam versions so no form is harder or easier to pass. This is a meaningfully different mental model than "beat the curve" - study the NDD Passing Score 2026 guide if you want the mechanics explained in full.

On pass rates: the 2025 first-time pass rate was 100% (15/15), and the official five-year aggregate for 2021-2025 was 88% (30/34). These are genuinely small cohorts, and ABPN itself would caution against reading them as a prediction for any individual candidate's outcome - a single retake or pass in a small pool swings the percentage dramatically. For context on how these numbers compare across years and what they do and don't tell you, see NDD Pass Rate 2026: What the Data Shows. If you're wondering how the exam's difficulty translates day-to-day, How Hard Is the NDD Exam? Complete Difficulty Guide 2026 goes further into preparation intensity.

Continuing Certification Cycle

Certification is not a one-time event. Continuing certification runs in three-year blocks and requires:

• Active, unrestricted licensure throughout the block
• 90 Category 1 CME credits
• Fulfillment of the 16-credit self-assessment requirement
• One Performance in Practice (PIP) activity for clinically active diplomates

Diplomates can satisfy the self-assessment portion through successful participation in the Article-Based Continuing Certification (ABCC) pathway, but ABCC does not eliminate the separate 90-credit CME requirement - the two obligations run in parallel, not as substitutes for each other. For assessment specifically, diplomates choose between 20 successfully completed ABCC article examinations per certification per three-year block, or the traditional ten-year continuing-certification examination. It's worth noting that this cheat sheet - and its companion prep resources - is built around the initial-certification question bank; ABCC articles and the ten-year exam draw on different question pools and should be prepared for separately.

One-Week Final Review Plan

If you're in the final stretch before test day, allocate review time by domain weight rather than evenly across all sixteen domains. A compressed final week might look like this:

This isn't a full training methodology - for that, the NDD Study Guide 2026 lays out a longer-horizon plan. But even a compressed final week benefits from weighting your hours to match the exam blueprint rather than reviewing domains in the order they appear in a textbook. Practicing with realistic question sets on our main practice test platform during this window helps surface which domains still need attention before it's too late to fix them.

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