C80.2 Malignant neoplasm associated with transplanted organ

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Code first

• complication of transplanted organ (T86.-)

Use additional code

• code to identify the specific malignancy

Applies from C80 Malignant neoplasm without specification of site

Excludes1 (never code together)

• malignant carcinoid tumor of unspecified site (C7A.00)
• malignant neoplasm of specified multiple sites- code to each site

Risk adjustment (HCC)

• CMS-HCC V28: HCC 23 — Prostate, Breast, and Other Cancers and Tumors
• CMS-HCC V22: HCC 12 — Breast, Prostate, and Other Cancers and Tumors
• RxHCC V08: HCC 22 — Prostate, Breast, Bladder, and Other Cancers and Tumors
• ESRD V24: HCC 12

MS-DRG index

Defines the logic of DRG(s) 826-828 in MDC 17.

Approximate ICD-9-CM (GEMs)

• 199.2 Malignant neoplasm associated with transplant organ

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to C80.2

Back-references to C80.2

• Use Additional: T86 Complications of transplanted organs and tissue ("malignancy associated with organ transplant (C80.2)")

Diagnosis Index entries for C80.2

• Complication (s) (from) (of) › transplant › malignant neoplasm

Nearby codes

• C80 Malignant neoplasm without specification of site
• C80.0 Disseminated malignant neoplasm, unspecified
• C80.1 Malignant (primary) neoplasm, unspecified
• C80.2 Malignant neoplasm associated with transplanted organ (this code)