🧠 What Happened to Axis II? Understanding the Shift from DSM-IV to DSM-5

By Linda C J Turner Therapy

If you’ve ever heard someone mention “Axis II disorders”, they’re referring to the older DSM-IV classification system — which included things like personality disorders and intellectual disabilities (then called “mental retardation”).

🔍 In DSM-IV, diagnoses were made across five axes, with Axis II specifically reserved for:

  1. Personality Disorders
  2. Mental Retardation (now known as Intellectual Disability)

These disorders were seen as long-standing, deeply ingrained patterns of thought, emotion, and behavior — not symptoms that “come and go,” but rather traits that often emerge in adolescence and persist into adulthood.


🚨 So what changed in the DSM-5?

The DSM-5, released in 2013 (and updated in the DSM-5-TR in 2022), eliminated the multi-axial system altogether.

👉 Axis I, II, and III are now combined into one single list of diagnoses.
All mental health conditions — including personality disorders and intellectual disabilities — are now diagnosed alongside one another in a more holistic framework.

Why?

✅ To reduce stigma around Axis II conditions
✅ To reflect that all mental health diagnoses can impact functioning and deserve equal attention
✅ To simplify diagnosis and improve continuity of care


💡 Personality Disorders in the DSM-5

Personality disorders are still very much recognized and categorized, but not in a separate “Axis II” section. They’re grouped under “Personality Disorders” with 10 distinct types, often divided into 3 clusters:

  • Cluster A: Odd, eccentric (e.g., Paranoid, Schizoid)
  • Cluster B: Dramatic, emotional (e.g., Borderline, Narcissistic)
  • Cluster C: Anxious, fearful (e.g., Avoidant, Dependent)

🔬 The DSM-5 also introduced a new Alternative Model for Personality Disorders (AMPD) — a dimensional, trait-based approach that’s still being researched and integrated into clinical practice.


💬 Why this matters:

Understanding these shifts helps de-stigmatize mental health, especially for those who have lived under outdated labels. Whether you’re a clinician, a client, or simply curious, it’s important to know that diagnosis and understanding continue to evolve — and so do we.

🌱 Healing starts with clarity and compassion.


📲 Follow @LindaCJTurnerTherapy for more on mental health, healing after abuse, and reclaiming your identity one insight at a time.

#DSM5 #MentalHealthEducation #PersonalityDisorders #NarcissisticAbuseRecovery #SelfAwareness #HealingJourney #TherapistExplains #TraumaInformedCare #ClusterB #MentalHealthAwareness #LindaCjTurnerTherapy

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