Z99.81

Billable

Dependence on supplemental oxygen

Z99.81 is the ICD-10-CM code for Dependence on supplemental oxygen. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
Z00-Z99
Parent
Z99.8
Edition
FY2026

Z00-Z99 Factors influencing health status and contact with health services

What this means — in plain language

MedlinePlus · NIH

What is oxygen? Oxygen is a gas that your body needs to work properly. Your cells need oxygen to make energy. Your lungs absorb oxygen from the air you breathe. The oxygen enters your blood from your lungs and travels to your organs and body tissues. Certain medical conditions can cause your blood oxygen levels to be too low. Low blood oxygen may make you feel short of breath , tired, and confused. It can also…

Read more about Oxygen Therapy at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Dependence on long-term oxygen

Frequently asked questions

What is ICD-10 code Z99.81?
Z99.81 is the ICD-10-CM code for "Dependence on supplemental oxygen". It falls under Z00-Z99 Factors influencing health status and contact with health services.
Is Z99.81 a billable code?
Yes — Z99.81 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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