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About this exam

The Certified Clinical Densitometry (CCD®) credential is issued by the International Society for Clinical Densitometry (ISCD), a society founded in 1993 that describes itself as an international network of more than 2,500 members and certified professionals from over 55 countries. ISCD frames certification as "formal recognition of the specialized knowledge, skills, and experience" of professionals in skeletal health assessment, and lists CCD alongside the Certified Bone Densitometry Technologist (CBDT®) credential. The CCD is aimed at clinicians and other practitioners who interpret and act on bone densitometry studies rather than at technologists acquiring scans, and ISCD positions it within a suite of offerings that also includes recertification options, maintenance of certification, a certification registry, and an appeals process. Because content is grounded in skeletal health assessment, preparation should center on the ISCD Official Positions - adult, pediatric, and FRAX - which ISCD publishes as best clinical practice guidelines, together with the Quality Bone Densitometry for Clinicians course, the DXA Atlas, the Ask an Expert forum, and the Journal of Clinical Densitometry. ISCD's published annual reports show recent CCD pass rates of 69% (2023), 62% (2024), 88% (2025), and 91% (2026), with 1,415 total CCD certificants to date. ISCD does not publish CCD exam length, question count, fee, or passing score on the pages reviewed here.

What you'll study

Common questions

About ISCD CCD preparation

What does the CCD exam cover?

ISCD describes certification as recognition of specialized knowledge, skills, and experience in skeletal health assessment, and publishes Official Positions for adult, pediatric, and FRAX topics as best clinical practice guidelines. Those Official Positions, plus the Quality Bone Densitometry for Clinicians course content, are the most defensible study spine. ISCD does not publish a CCD content outline on the pages reviewed.

How hard is the CCD exam?

ISCD's own annual reports give the clearest signal: pass rates were 69% in 2023, 62% in 2024, 88% in 2025, and 91% in 2026 across 219, 148, 179, and 112 candidates respectively. The recent two years are notably higher than 2023–2024, so treat older pass-rate anecdotes with caution and prepare to the current Official Positions.

How many questions and how long is the exam?

ISCD does not state the CCD question count or exam duration on the certification pages reviewed. Because these figures change and are not published there, confirm them directly with ISCD headquarters ([email protected], 1-860-259-1000) before you build a timing strategy around any number you have heard secondhand.

What score do I need to pass, and what does it cost?

Neither the passing score nor the exam fee is published on the ISCD certification pages reviewed. ISCD does note that members receive the best pricing on education, events, and certifications, so membership is worth evaluating on cost alone. Contact ISCD directly for the current fee and passing standard rather than relying on older figures.

Can I retake the exam if I fail?

ISCD maintains a formal Appeals Form and a Certification Resources section, which indicates a structured process exists for certification disputes, but the pages reviewed do not state a retake policy, waiting period, or retake fee. Ask ISCD about retake eligibility before your first attempt so a failure does not catch you without a plan.

Does the CCD expire, and how do I recertify?

ISCD lists both Recertification Options and Maintenance of Certification as separate certification pages, so a ongoing maintenance requirement clearly exists, but the certification validity period is not stated on the pages reviewed. Review both ISCD pages early in your study cycle, since maintenance obligations may influence which recertification path you choose.

In what order should I study?

Start with the ISCD Official Positions - adult first, then FRAX, then pediatric - because they are the published best-practice guidelines the field is built on. Then work through the Quality Bone Densitometry for Clinicians course, and use the DXA Atlas and Journal of Clinical Densitometry articles to test interpretation judgment rather than memorization.

What are the most common failure modes?

Candidates most often lose points by studying from outdated secondary summaries instead of the current Official Positions, and by memorizing thresholds without practicing interpretation on real scans. Because ISCD revises positions over time, verify any number against the current ISCD Official Positions pages. Build judgment with the DXA Atlas and Ask an Expert rather than flashcards alone.

Is this exam only for physicians?

ISCD describes itself as a multidisciplinary organization whose members represent a variety of medical specialties, academic disciplines, and professional positions, including technologists, physicians, and researchers. The CCD sits alongside the CBDT technologist credential, so the two serve different roles. Check ISCD's CCD eligibility criteria to confirm your background qualifies.

How do I find a test location?

ISCD maintains a Test Locations page linked from its certification section, along with a Certification Registry of credentialed professionals. Check the Test Locations page for current availability, and confirm scheduling details with ISCD headquarters at [email protected] or 1-860-259-1000, since site availability changes and is not documented on the main certification page.