Is Z99.81 a billable ICD-10 code?

Yes. Z99.81 (Dependence on supplemental oxygen) is billable and can be used for insurance claims. Always verify payer-specific requirements.

Z99.81 ✓ Billable

Dependence on supplemental oxygen

Q: What is ICD-10 code Z99.81?

ICD-10-CM code Z99.81 stands for "Dependence on supplemental oxygen". It is a billable code in the Factors Influencing Health Status chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Factors Influencing Health Status

Code

Z99.81

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Factors Influencing Health Status

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code Z99.81?

ICD-10-CM code Z99.81 represents Dependence on supplemental oxygen. It is a billable diagnosis code in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.

Is Z99.81 billable?

Yes. Z99.81 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is Z99.81 in?

Z99.81 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.

Related codes in the Z99 category

Z99 Dependence on enabling machines and devices, not elsewhere classified Non-billable Z99.0 Dependence on aspirator Billable Z99.1 Dependence on respirator Non-billable Z99.2 Dependence on renal dialysis Billable Z99.3 Dependence on wheelchair Billable Z99.8 Dependence on other enabling machines and devices Non-billable Z99.11 Dependence on respirator [ventilator] status Billable Z99.12 Encounter for respirator [ventilator] dependence during power failure Billable

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