C68.9
BillableMalignant neoplasm of urinary organ, unspecified
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is C68.9 an HCC code?
Yes. C68.9 maps to Colorectal, Bladder, and Other Cancers under the CMS-HCC V28 risk adjustment model (and Colorectal, Bladder, and Other Cancers under V24).
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for C68.9
For C68.9to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed C68.9 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
C68.9 is the ICD-10-CM diagnosis code for malignant neoplasm of urinary organ, unspecified. Cancer of the urinary system where the specific organ involved has not been clearly identified. C68.9 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering malignant neoplasms of urinary tract (c64-c68).
Under the CMS-HCC V28 risk adjustment model, C68.9 maps to Colorectal, Bladder, and Other Cancers (HCC 22) with a community, non-dual, aged base RAF weight of 0.000. Under the older V24 model, C68.9 mapped to the same category but with a base RAF weight of 0.306 — V28 recalibrated weights across the entire model. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
This is a default code; make every effort to obtain additional documentation to specify the organ site. Because C68.9 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for C68.9 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is a default code; make every effort to obtain additional documentation to specify the organ site
- •Review all available diagnostic reports to assign a more specific C68 code
Clinical Significance
This unspecified urinary organ malignancy code represents a confirmed cancer where the specific urinary organ cannot be determined. While it still captures the cancer for risk adjustment purposes, it reflects suboptimal documentation and should prompt a query for additional clinical detail from imaging, pathology, or surgical findings.
Documentation Requirements
- ✓Confirmed malignancy diagnosis by pathology or definitive clinical evidence
- ✓Documentation that more specific site information was sought but unavailable
- ✓Explanation of why the specific urinary organ cannot be identified
- ✓Current treatment status and clinical context
- ✓Provider query documented when diagnostic workup is incomplete
Commonly Confused Codes
- •C67.9 — Bladder, unspecified: if the organ is known to be the bladder, use C67.9, not C68.9
- •C64.1/C64.2 — Kidney cancer: if kidney is identified as the site, use the specific renal code
- •C65-C68 specific organ codes — Always attempt to identify the specific organ before using C68.9
- •D49.4 — Neoplasm of unspecified behavior, urinary: use when malignancy is not confirmed