Z99.11: Dependence on respirator [ventilator] status

Risk adjustment

Z99.11 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

• HCC 211 Respirator Dependence/Tracheostomy Status/Complications0.879 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

Z99.11 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

• A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
• A57224Billing and Coding: Respiratory Care