D231.40Mental Health

History of conduct disorders

"History of conduct disorders, oppositional defiance disorders, and other behavior disorders"

What This Code Means

Receiving DQ code D231.40 means the DoDMERB physician reviewer determined that your medical history or exam findings related to history of conduct disorders do not currently meet Department of Defense accession standards as defined in DoDI 6130.03.

This does not end your candidacy. Many conditions flagged under this code are waiverable. The next step is understanding the exact standard that applies to your situation and whether a waiver request is appropriate for your commissioning source.

Official Regulation Text

From DoDI 6130.03-V1, “Medical Standards for Military Service,” Change 6 (February 3, 2026)

Section 6.28.hLearning, Psychiatric, and Behavioral Disorders
History of conduct disorders, oppositional defiance disorders, and other behavior disorders.
Section 6.28.dLearning, Psychiatric, and Behavioral Disorders
History of disorders with psychotic features such as schizophrenic disorders, delusional disorders, or other unspecified psychoses or mood disorders with psychotic features.
Section 6.28.eLearning, Psychiatric, and Behavioral Disorders
History of bipolar and related disorders (formerly identified as mood disorders not otherwise specified) including, but not limited to, cyclothymic disorders and affective psychoses.
Section 6.28.sLearning, Psychiatric, and Behavioral Disorders
History of somatic symptoms and related disorders.
Section 6.28.tLearning, Psychiatric, and Behavioral Disorders
Current diagnosis or history of gender dysphoria, or exhibit symptoms consistent with, gender dysphoria, as described in the Diagnostic and Statistical Manual of Mental Disorders.

Waiver Outlook for Mental Health Conditions

High Likelihoodif no symptoms or treatment within the past year and no academic or work impairments are documented

Key Factors for Waiver Approval

  • Cessation of medication use for at least 12 months
  • Strong academic performance without accommodations (no IEP or 504 Plan)
  • Positive evaluations from teachers or coaches indicating no impairment
  • No comorbid conditions such as anxiety or depression
Documentation Tip

Independent psychological and cognitive testing confirming normal executive functioning can be one of the strongest pieces of evidence in an ADHD waiver case.

This condition is covered in depth in The Ultimate DoDMERB Handbook by LTC Kirkland & Capt Dach — including real success scenarios, remedial exam strategies, and the complete waiver playbook. Get the handbook →

Read Our Full Guide on Mental Health Conditions

Learn how DoDMERB evaluates mental health conditions, common waiver scenarios, documentation tips, and what to expect throughout the process.

Read the mental health guide