DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 5

F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

Block F40-F48 groups 7 categories with 71 billable codes in FY2027.

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

Neighbouring blocks

Categories
7
Billable codes
71
CC codes
0
MCC codes
0
HCC V28 codes
4
New FY2027
0

Categories in F40-F48

  • F40

    Phobic anxiety disorders

    Apiphobia → F40.218

    • 23 billable codes
  • F41

    Other anxiety disorders

    Anxiety → F41.9

    • 5 billable codes
  • F42

    Obsessive-compulsive disorder

    Swearing, compulsive → F42.8

    • 5 billable codes
  • F43

    Reaction to severe stress, and adjustment disorders

    Grief → F43.21

    • 14 billable codes
  • F44

    Dissociative and conversion disorders

    Blocq's disease → F44.4

    • 10 billable codes
    • 3 with HCC
  • F45

    Somatoform disorders

    Bigorexia → F45.22

    • 10 billable codes
  • F48

    Other nonpsychotic mental disorders

    Pithiatism → F48.8

    • 4 billable codes
    • 1 with HCC

Index main terms

  • Disorder (of) → F40, F41, F42, F43, F44, F45, F48 (141 entries)
  • Neurosis, neurotic → F40, F41, F42, F43, F44, F45, F48 (56 entries)
  • Phobia, phobic → F40 (28 entries)
  • Spasm(s), spastic, spasticity → F44, F45, F48 (26 entries)
  • Reaction → F40, F41, F42, F43, F44, F45, F48 (22 entries)
  • State (of) → F40, F41, F42, F43, F44, F48 (18 entries)
  • Disturbance(s) → F40, F43, F44, F45 (16 entries)
  • Asthenia, asthenic → F44, F45, F48 (12 entries)
  • Anxiety → F41 (10 entries)
  • Contraction(s), contracture, contracted → F44, F45 (9 entries)
  • Disease, diseased → F45, F48 (9 entries)
  • Cramp(s) → F45, F48 (8 entries)
  • Syndrome → F45, F48 (8 entries)
  • Exhaustion, exhaustive (physical NEC) → F43, F48 (7 entries)
  • Pruritus, pruritic (essential) → F45 (7 entries)

+287 more main terms; the search box finds them by word.

Block instructions

Notes that also apply

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.