Mental Disorders Changes

Effective October 1, 2004, a significant number of changes have been made to the code titles for conditions classified to Chapter 5, Mental Disorders (290-319). The Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision (DSM-IV-TR), is used by clinicians, researchers and administrators in the mental health services field to communicate and record diagnostic information. Over the years, the diagnostic terminology in the DSM has evolved in order to keep pace with current clinical usage. Although the diagnostic codes used in the DSM were originally taken from the ICD-9-CM, the diagnostic terminology used in chapter 5 of...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article reviews a large set of terminology revisions to the ICD-9-CM mental disorders chapter effective October 1, 2004. It is intended for coding professionals, compliance staff, clinical documentation teams, and others who need to understand how mental health diagnostic language was updated to better align with contemporary psychiatric terminology. The article covers revised chapter language, added and deleted terms, and related cross-references across multiple mental health diagnostic categories.

Why This Topic Matters

Mental health diagnosis terminology changes can affect documentation interpretation, code lookup, and consistency between clinical language and coded records. This article helps readers understand the scope of the update and why it may impact coding and reporting workflows.

Article Sections

  1. Overview of the terminology update

    Introduces the effective date and explains the purpose of the chapter-wide terminology changes. It also places the update in the context of DSM-IV-TR and ICD-10-CM alignment.

  2. Mental disorders chapter revisions

    Summarizes the broad set of revised terms across the mental disorders chapter. The section spans organic, substance-related, psychotic, mood, anxiety, personality, childhood, sleep, eating, stress-related, and developmental categories.

What You Will Learn

  • Which broad mental health classification areas were updated
  • How the article frames the terminology alignment with DSM-IV-TR and ICD-10-CM
  • What types of changes are included in the ICD-9-CM mental disorders chapter update
  • Which coding categories are affected by the revisions

Who Should Read This

  • Medical coders
  • Coding auditors
  • Compliance professionals
  • Clinical documentation staff
  • Health information management professionals
  • Mental health billing staff

Codes Discussed

  • ICD-9-CM: 290
  • ICD-9-CM: 291.0
  • ICD-9-CM: 291.2
  • ICD-9-CM: 292.82
  • ICD-9-CM: 290.4
  • ICD-9-CM: 290.40
  • ICD-9-CM: 290.41
  • ICD-9-CM: 290.42
  • ICD-9-CM: 290.43
  • ICD-9-CM: 291
  • ICD-9-CM: 291.1
  • ICD-9-CM: 291.3
  • ICD-9-CM: 291.5
  • ICD-9-CM: 291.8
  • ICD-9-CM: 291.89
  • ICD-9-CM: 291.9
  • ICD-9-CM: 292
  • ICD-9-CM: 292.0
  • ICD-9-CM: 292.1
  • ICD-9-CM: 292.11
  • ICD-9-CM: 292.12
  • ICD-9-CM: 292.8
  • ICD-9-CM: 292.83
  • ICD-9-CM: 292.84
  • ICD-9-CM: 292.89
  • ICD-9-CM: 292.9
  • ICD-9-CM: 293
  • ICD-9-CM: 293.0
  • ICD-9-CM: 293.8
  • ICD-9-CM: 293.81
  • ICD-9-CM: 293.82
  • ICD-9-CM: 293.83
  • ICD-9-CM: 293.84
  • ICD-9-CM: 293.89
  • ICD-9-CM: 293.9
  • ICD-9-CM: 294
  • ICD-9-CM: 294.0
  • ICD-9-CM: 294.1
  • ICD-9-CM: 294.8
  • ICD-9-CM: 294.9
  • ICD-9-CM: 295
  • ICD-9-CM: 295.4
  • ICD-9-CM: 295.6
  • ICD-9-CM: 295.7
  • ICD-9-CM: 295.9
  • ICD-9-CM: 296
  • ICD-9-CM: 296.0
  • ICD-9-CM: 296.4
  • ICD-9-CM: 296.5
  • ICD-9-CM: 296.6
  • ICD-9-CM: 296.7
  • ICD-9-CM: 296.8
  • ICD-9-CM: 296.80
  • ICD-9-CM: 296.89
  • ICD-9-CM: 296.9
  • ICD-9-CM: 296.90
  • ICD-9-CM: 296.99
  • ICD-9-CM: 297
  • ICD-9-CM: 297.1
  • ICD-9-CM: 297.3
  • ICD-9-CM: 298
  • ICD-9-CM: 298.8
  • ICD-9-CM: 298.9
  • ICD-9-CM: 299
  • ICD-9-CM: 299.0
  • ICD-9-CM: 299.1
  • ICD-9-CM: 299.8
  • ICD-9-CM: 299.9
  • ICD-9-CM: 300
  • ICD-9-CM: 300.0
  • ICD-9-CM: 300.01
  • ICD-9-CM: 300.1
  • ICD-9-CM: 300.12
  • ICD-9-CM: 300.13
  • ICD-9-CM: 300.14
  • ICD-9-CM: 300.16
  • ICD-9-CM: 300.19
  • ICD-9-CM: 300.2
  • ICD-9-CM: 300.21
  • ICD-9-CM: 300.29
  • ICD-9-CM: 300.4
  • ICD-9-CM: 300.6
  • ICD-9-CM: 300.8
  • ICD-9-CM: 300.89
  • ICD-9-CM: 300.9
  • ICD-9-CM: 301
  • ICD-9-CM: 301.2
  • ICD-9-CM: 301.22
  • ICD-9-CM: 301.4
  • ICD-9-CM: 301.8
  • ICD-9-CM: 301.81
  • ICD-9-CM: 301.82
  • ICD-9-CM: 301.83
  • ICD-9-CM: 302
  • ICD-9-CM: 302.0
  • ICD-9-CM: 302.3
  • ICD-9-CM: 302.6
  • ICD-9-CM: 302.7
  • ICD-9-CM: 302.70
  • ICD-9-CM: 302.71
  • ICD-9-CM: 302.72
  • ICD-9-CM: 302.73
  • ICD-9-CM: 302.74
  • ICD-9-CM: 302.75
  • ICD-9-CM: 302.76
  • ICD-9-CM: 302.79
  • ICD-9-CM: 302.8
  • ICD-9-CM: 302.85
  • ICD-9-CM: 302.89
  • ICD-9-CM: 302.9
  • ICD-9-CM: 304
  • ICD-9-CM: 304.1
  • ICD-9-CM: 304.6
  • ICD-9-CM: 305
  • ICD-9-CM: 305.4
  • ICD-9-CM: 305.9
  • ICD-9-CM: 307
  • ICD-9-CM: 307.0
  • ICD-9-CM: 307.2
  • ICD-9-CM: 307.20
  • ICD-9-CM: 307.21
  • ICD-9-CM: 307.22
  • ICD-9-CM: 307.23
  • ICD-9-CM: 307.3
  • ICD-9-CM: 307.4
  • ICD-9-CM: 307.45
  • ICD-9-CM: 307.46
  • ICD-9-CM: 307.5
  • ICD-9-CM: 307.50
  • ICD-9-CM: 307.51
  • ICD-9-CM: 307.53
  • ICD-9-CM: 307.59
  • ICD-9-CM: 307.8
  • ICD-9-CM: 307.89
  • ICD-9-CM: 308
  • ICD-9-CM: 308.3
  • ICD-9-CM: 309
  • ICD-9-CM: 309.0
  • ICD-9-CM: 309.2
  • ICD-9-CM: 309.24
  • ICD-9-CM: 309.28
  • ICD-9-CM: 309.3
  • ICD-9-CM: 309.4
  • ICD-9-CM: 309.8
  • ICD-9-CM: 309.81
  • ICD-9-CM: 310
  • ICD-9-CM: 310.1
  • ICD-9-CM: 310.8
  • ICD-9-CM: 312
  • ICD-9-CM: 312.3
  • ICD-9-CM: 312.39
  • ICD-9-CM: 312.89
  • ICD-9-CM: 312.9
  • ICD-9-CM: 313
  • ICD-9-CM: 313.2
  • ICD-9-CM: 313.23
  • ICD-9-CM: 313.81
  • ICD-9-CM: 313.82
  • ICD-9-CM: 313.89
  • ICD-9-CM: 313.9
  • ICD-9-CM: 315
  • ICD-9-CM: 315.1
  • ICD-9-CM: 315.2
  • ICD-9-CM: 315.3
  • ICD-9-CM: 315.31
  • ICD-9-CM: 315.32
  • ICD-9-CM: 315.39
  • ICD-9-CM: 315.4
  • ICD-9-CM: 315.9

Code Ranges Discussed

  • ICD-9-CM: 290-319
  • ICD-9-CM: 291.0-291.2
  • ICD-9-CM: 347.00-347.11

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