QA71

ICD-11 MMS 2026-01

Underdosing without injury or harm

Description

Under-dosing occurs when a patient takes less of a medication than is prescribed by the provider or the manufacturer's instructions without documented injury or harm. This can be the result of inaccurate measurement of a drug, including oral administration. No injury or harm occurred as a result.

Index terms

  • Underdosing without injury or harm
  • incorrect dose leading to inadequate or insufficient level or effect of medication or substance without documented injury or harm
  • incorrect strength of drug leading to inadequate or insufficient level or effect of medication or substance without documented injury or harm
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  • medication error leading to insufficient level of drug without documented injury or harm
  • wrong dose leading to inadequate or insufficient level or effect of medication or substance without documented injury or harm
  • wrong strength leading to inadequate or insufficient level or effect of medication or substance without documented injury or harm

Excludes

  • PL13.1 – Underdosing, as mode of injury or harm

Exclusions from above levels

  • PL13 – Mode of injury or harm associated with exposure to a drug, medicament or biological substance
  • QA8B – Delayed treatment without injury or harm

Sibling codes

  • QA70 – Overdose of substance without injury or harm
  • QA72 – Incorrect substance without injury or harm
  • QA73 – Incorrect route of administration without injury or harm
  • QA75 – Incorrect duration of administration or course of therapy without injury or harm
  • QA76 – Medication or substance that is known to be an allergen without injury or harm
  • QA77 – Medication or substance that is known to be contraindicated for the patient without injury or harm
  • QA78 – Expired or deteriorated medication or substance without injury or harm
  • QA79 – Drug or substance interactions without injury or harm
  • QA7A – Inappropriate stoppage or discontinuation of drug without injury or harm
  • QA7Y – Other specified circumstances associated with exposure to a drug, medicament or biological substance influencing the episode of care without injury or harm
  • QA7Z – Circumstances associated with exposure to a drug, medicament or biological substance influencing the episode of care without injury or harm, unspecified

Foundation entity

Underdosing without injury or harm – http://id.who.int/icd/entity/1259999164

Part of: 24: Factors influencing health status or contact with health services