ICD10BillableValid for clinical use

ICD-10 Code Y90.0: Blood alcohol level of less than 20 mg/100 ml

Y90.0 is a billable ICD-10 diagnosis code used to classify Blood alcohol level of less than 20 mg/100 ml in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for External causes of morbidity (V00-Y99).

When is it used?

  • May be used when a clinician documents blood alcohol level of less than 20 mg/100 ml in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
20External causes of morbidity (V00-Y99)
block
Y90-Y99Supplementary factors related to causes of morbidity classified elsewhere
category
Y90Evidence of alcohol involvement determined by blood alcohol level
currentY90

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Hematologist

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
Y90.0

Common synonyms

Blood alcohol level of less than 20 mg/100 ml

Frequently asked questions

Code details

CodeY90.0
SystemICD10
Display nameBlood alcohol level of less than 20 mg/100 ml
ChapterExternal causes of morbidity (V00-Y99)
BlockSupplementary factors related to causes of morbidity classified elsewhere

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code Y90.0 for Blood alcohol level of less than 20 mg/100 ml | HealthAssure