What is the ICD‑10 code for ethanol (alcohol) related disorders?

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ICD-10 Codes for Alcohol-Related Disorders

The primary ICD-10 codes for ethanol (alcohol) related disorders are F10.x for alcohol use disorders and O99.31x for alcohol use complicating pregnancy, with the WHO's ICD-10 system not classifying "alcohol abuse" as a separate entity but rather focusing on harmful use and dependence. 1

Core ICD-10 Code Categories

The ICD-10 classification system organizes alcohol-related disorders under the following structure:

F10.x Series (Mental and Behavioral Disorders Due to Alcohol)

  • F10.0: Acute intoxication
  • F10.1: Harmful use (pattern of use causing actual physical or mental damage)
  • F10.2: Dependence syndrome (physiological and psychological dependence)
  • F10.3/F10.4: Withdrawal states
  • F10.5-F10.9: Psychotic disorders, amnestic syndrome, and other alcohol-induced conditions
  • F10.7: Residual and late-onset psychotic disorders 2

Pregnancy-Specific Codes

  • O99.31x: Alcohol use complicating pregnancy, childbirth, and the puerperium 3

Alcohol-Related Organ Damage

  • K70.x: Alcoholic liver disease (including K70.0-4, K70.9)
  • K85.2/K85.20: Alcohol-induced acute pancreatitis
  • K86.0: Alcohol-induced chronic pancreatitis
  • E24.4: Alcohol-induced pseudo-Cushing's syndrome
  • G31.2: Alcoholic cerebellar degeneration
  • G62.1: Alcoholic polyneuropathy
  • I42.6: Alcoholic cardiomyopathy 1

Toxic Effects

  • T51.0/T51.9: Toxic effect of ethanol 4

Important Distinctions from DSM-5

A critical caveat: The WHO's ICD-10 deliberately does not classify "alcohol abuse" as a separate category due to ambiguity in its definition 1. This differs fundamentally from the DSM-IV system. The ICD-10 focuses on:

  1. Harmful use (F10.1): Actual damage to physical or mental health
  2. Dependence syndrome (F10.2): Physiological dependence with tolerance and withdrawal

Severity Classification Using ICD-10

Recent research has proposed a five-level severity classification system using ICD-10 codes 4:

  • Level 1: F10.0, T51.0, or T51.9 (acute intoxication/toxic effects)
  • Level 2: F10.1 (harmful use)
  • Level 3: F10.2 (dependence)
  • Level 4: F10.3/F10.4 (withdrawal states)
  • Level 5: Organ damage codes (K70.x series plus associated conditions)

This hierarchical approach demonstrates a dose-response relationship with comorbidity burden, with higher severity levels associated with increased medical complications.

Coding Accuracy Considerations

The positive predictive value of ICD codes varies dramatically depending on the specific code used 3:

  • O99.31x (pregnancy-related): 100% PPV for capturing alcohol use in pregnancy
  • F10.x series: 33.4% representation in clinical samples
  • 305.x (ICD-9 legacy code): Only 10% PPV for actual alcohol use

When using administrative data for research or quality metrics, the F10.2 (dependence) and O99.31x codes demonstrate the highest validity, while F10.0 and legacy codes show substantial misclassification 3, 4.

Transition to ICD-11

The ICD-11 maintains strong concordance with ICD-10 for dependence diagnoses (kappa = 0.97) but shows moderate concordance for harmful use (kappa = 0.82) 5. The ICD-11 introduces "harm to others" as a diagnostic criterion, which may capture approximately 28% of additional cases not identified under ICD-10 5.

References

2
Research

[Typology and systematization of residual mental disorders in alcohol dependence].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2007

4
Research

Identifying levels of alcohol use disorder severity in electronic health records.

Substance abuse treatment, prevention, and policy, 2025

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.