MCMedicalCodingSoftware
Free trial
Z68.18

Z68.18: Body mass index [BMI] 18.4 or less, adult

Billable / specific codeICD-10-CMPOA exempt

Z68.18 is a billable, specific ICD-10-CM code for body mass index [bmi] 18.4 or less, adult. It is valid for submission on a claim.

Check Z68.18 with the rest of the claim: free scrubber

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z68.18 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56938Billing and Coding: Hypoglossal Nerve Stimulation for the Treatment of Obstructive Sleep Apnea
  • A56953Billing and Coding: Hypoglossal Nerve Stimulation for the Treatment of Obstructive Sleep Apnea
  • A57092Billing and Coding: Hypoglossal Nerve Stimulation for Treatment of Obstructive Sleep Apnea
  • A57149Billing and Coding: Hypoglossal Nerve Stimulation for Treatment of Obstructive Sleep Apnea

Alphabetic index entries that lead here

  • Body, bodies›mass index›adult›18.4 or less, adult

Code history

  • addedFY2024-FY2027

    Body mass index [BMI] 18.4 or less, adult

Other codes under Z68.1

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.