Z48.290 Encounter for aftercare following bone marrow transplant

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.

Applies from Z48 Encounter for other postprocedural aftercare

Excludes1 (never code together)

• encounter for follow-up examination after completed treatment (Z08-Z09)
• encounter for aftercare following injury - code to Injury, by site, with appropriate 7th character for subsequent encounter

Excludes2 (not included here)

• encounter for attention to artificial openings (Z43.-)
• encounter for fitting and adjustment of prosthetic and other devices (Z44-Z46)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 454 — Stem Cell, Including Bone Marrow, Transplant Status/Complications
• CMS-HCC V22: HCC 186 — Major Organ Transplant or Replacement Status
• RxHCC V08: HCC 395 — Stem Cell, Including Bone Marrow, Transplant Status/Complications
• ESRD V24: HCC 186

MS-DRG index

Defines the logic of DRG(s) 949-950 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V42.81 Bone marrow replaced by transplant (approximate)
• V58.44 Aftercare following organ transplant (approximate)

Code annotations containing back-references to Z48.290

Back-references to Z48.2

• Type 2 Excludes: Z48.81 Encounter for surgical aftercare following surgery on specified body systems ("aftercare following organ transplant (Z48.2-)")

Back-references to Z48

• Type 1 Excludes: Z08 Encounter for follow-up examination after completed treatment for malignant neoplasm ("aftercare following medical care (Z43-Z49, Z51)")
• Type 1 Excludes: Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm ("aftercare following medical care (Z43-Z49, Z51)")
• Type 2 Excludes: Z98 Other postprocedural states ("aftercare (Z43-Z49, Z51)")

Diagnosis Index entries for Z48.290

• Aftercare › following surgery (for) (on) › organ transplant › bone marrow

Nearby codes

• Z48.24 Encounter for aftercare following lung transplant
• Z48.28 Encounter for aftercare following multiple organ transplant
• Z48.280 Encounter for aftercare following heart-lung transplant
• Z48.288 Encounter for aftercare following multiple organ transplant
• Z48.29 Encounter for aftercare following other organ transplant
• Z48.290 Encounter for aftercare following bone marrow transplant (this code)
• Z48.298 Encounter for aftercare following other organ transplant
• Z48.3 Aftercare following surgery for neoplasm
• Z48.8 Encounter for other specified postprocedural aftercare
• Z48.81 Encounter for surgical aftercare following surgery on specified body systems
• Z48.810 Encounter for surgical aftercare following surgery on the sense organs