Z44.121: Encounter for fitting and adjustment of partial artificial right leg

Risk adjustment

Z44.121 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

• HCC 409 Amputation Status, Lower Limb/Amputation Complications0.598 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

Z44.121 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

• A53057Billing and Coding: Home Health Occupational Therapy
• A53058Billing and Coding: Home Health Physical Therapy
• A53065Billing and Coding: Outpatient Physical Therapy
• A57311Billing and Coding: Physical Therapy - Home Health