MCMedicalCodingSoftware
J4A.0

J4A.0: Restrictive allograft syndrome

Billable / specific codeICD-10-CM

J4A.0 is a billable, specific ICD-10-CM code for restrictive allograft syndrome. It is valid for submission on a claim.

Check J4A.0 with the rest of the claim: free scrubber

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

  • , if applicable, for mixed chronic lung allograft dysfunction, bronchiolitis obliterans syndrome (J44.81)

Risk adjustment

J4A.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 276 Lung Transplant Status/Complications2.531 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

J4A.0 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57115Billing and Coding: Noninvasive Ear or Pulse Oximetry For Oxygen Saturation

Alphabetic index entries that lead here

  • Syndrome›restrictive allograft
  • Dysfunction›chronic›lung allograft›mixed

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under J4A

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.