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ICD-10 Learning Lab Exit Presentation Mode

Category: F10 F11 F12 F13 F14 F15 F16 F17 F18 F19

F13 — Mental and behavioural disorders due to use of sedatives or hypnotics: facilitator sheet

Teaching objective

As elsewhere in this block, dependence syndrome requires the fuller six-criteria cluster, not simply prescribed or long-term use. The classification question most specific to F13 is severity triage during withdrawal: has this been high-dose and/or long-duration use stopped abruptly, raising real risk of seizures or delirium, or is this a lower-risk taper from a shorter, lower-dose course?

Choose material

Worked example · Case: A gap in the prescription · Case: Confusion joins the tremor

Worked example

Show scenario

A 60-year-old has taken a moderate-to-high dose of a benzodiazepine nightly for eight years, initially prescribed for anxiety. She recently ran out of medication and could not obtain a refill for several days. She has since developed marked tremor, sweating, and one brief episode of disorientation where she did not recognise her own kitchen for a few minutes before it cleared.

(or reveal one step at a time below)
  1. Reveal step 1

    Step 1 — Note dose and duration: eight years of moderate-to-high-dose use is a long, substantial exposure, raising baseline withdrawal risk.

  2. Reveal step 2

    Step 2 — Note abruptness: cessation was abrupt (an unplanned gap in supply) rather than a supervised taper, further raising risk.

  3. Reveal step 3

    Step 3 — Identify the withdrawal symptom cluster: tremor and sweating are consistent with an expected withdrawal state.

  4. Reveal step 4

    Step 4 — Identify the complicating feature: the brief episode of disorientation is a feature of delirium — a disturbance of consciousness and orientation — layered on top of the withdrawal state.

  5. Reveal step 5

    Conclusion — Given long-duration, high-dose use stopped abruptly, followed by a withdrawal state complicated by an episode of delirium, this is best classified as withdrawal state with delirium (F13.4), not an uncomplicated withdrawal state, and warrants urgent medical attention given the seizure/delirium risk this pattern carries.

Comparison points

F13 parallels F10 closely: dependence requires the fuller cluster, not prescribed use alone, and its withdrawal state carries genuine seizure/delirium risk comparable to alcohol, distinguishing it sharply from F11's lower-risk withdrawal course.

Discussion prompts

(or reveal one at a time below)
  1. Prompt 1

    Without looking back at the page, name the three factors that most raise sedative/hypnotic withdrawal risk.

  2. Prompt 2

    State which other category in this block shares F13's seizure/delirium withdrawal risk, and which does not.

  3. Prompt 3

    Explain in one sentence why brief, low-dose, supervised use does not by itself indicate dependence.

Summary

Sedative/hypnotic dependence follows the same six-criteria cluster as elsewhere in this block, but its withdrawal state carries genuine seizure and delirium risk comparable to alcohol, especially after high-dose, long-duration use stopped abruptly.