C68.8 maps to CMS-HCC V28 22. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · HCC Buddy coding tools

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Code lookupC68.8

Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Neoplasms (C00-D49) / Malignant neoplasms of urinary tract (C64-C68)

C68.8

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Malignant neoplasm of overlapping sites of urinary organs

Cancer involving multiple overlapping areas of the urinary system organs, such as the urethra, bladder, or related structures.

Buddy Insight

This code captures malignancies that span multiple urinary organs, indicating locally advanced disease that crosses anatomical boundaries.

Overview Risk Models Code Book Documentation Audit Notes Edition comparison

CMS-HCC V28

Mapped

HCC 22

Bladder, Colorectal, and Othe...

Coefficient HCC 22: 0.363 (Community Non-Dual Aged (CNA))

CMS-HCC V24

Historical

Not used for standard CY2026 Medicare Advantage payment. Select a historical period to review V24.

Not used for CY2026 payment

ACA/HHS

Mapped

HCC 012

HHS-HCC 012 adult, RAF varies...

Code-level coefficient reference

ESRD/PACE

Mapped

HCC 11

Colorectal/Bladder/and Other ...

Code-level coefficient reference

RXHCC

Mapped

HCC 22

Prostate, Breast, Bladder, an...

Code-level coefficient reference

Code Book Path

Official

C68Malignant neoplasm of other and unspecified urinary organs C68.8Malignant neoplasm of overlapping sites of urinary organs

Inclusion Terms

Official

Primary malignant neoplasm of two or more contiguous sites of urinary organs whose point of origin cannot be determined

Excludes 2

Official

No Excludes 2 notes are included in this display for C68.8. Check the code and parent instructions in the Code Book.

Related Codes

Official

C68.0Malignant neoplasm of urethra C68.1Malignant neoplasm of paraurethral glands C68.9Malignant neoplasm of urinary organ, unspecified

Includes

Official

No Includes notes are included in this display for C68.8. Check the code and parent instructions in the Code Book.

Excludes 1

Official

malignant neoplasm of female genitourinary tract NOS (C57.9)Inherited from C68
malignant neoplasm of male genitourinary tract NOS (C63.9)Inherited from C68

Code First

Official

No Code First sequencing instructions are included in this display for C68.8. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for C68.8. Check the code and parent instructions in the Code Book.

Code Also

Official

No Code Also instructions are included in this display for C68.8. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance

Pathology or imaging confirming tumor involvement across two or more distinct urinary organs

Documentation of which specific urinary organs are involved

Surgical or imaging evidence that a single-site code cannot adequately describe the extent

TNM staging reflecting multi-organ involvement

MEAT Support

HCC Buddy guidance

Pathology or imaging confirming tumor involvement across two or more distinct urinary organs

Documentation of which specific urinary organs are involved

Surgical or imaging evidence that a single-site code cannot adequately describe the extent

TNM staging reflecting multi-organ involvement

Audit Caution

HCC Buddy guidance

Using this code when the primary tumor is in one organ with metastasis to another — metastatic spread should use secondary neoplasm codes

Confusing overlapping urinary organs (C68.8) with overlapping bladder sites (C67.8)

Failing to document which specific organs are involved, which reduces clinical utility

Common Mistakes

HCC Buddy guidance

C67.8 — Overlapping sites of bladder: use when overlapping is within the bladder only; C68.8 is for involvement across different urinary organs

C68.9 — Urinary organ, unspecified: overlapping means multiple known sites; unspecified means the site is unknown

C65-C68 individual codes — If a primary site can be identified, code the primary site rather than overlapping

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is C68.8 an HCC code?

Yes. C68.8 (Malignant neoplasm of overlapping sites of urinary organs) maps to HCC 22, Bladder, Colorectal, and Other Cancers under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.363. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes. It is billable for payment year 2026.

Coder answer: C68.8 is billable and maps to V28 HCC 22, Bladder, Colorectal, and Other Cancers. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code: C68.8
Description: Malignant neoplasm of overlapping sites of urinary organs
HCC (V28): HCC 22 — Bladder, Colorectal, and Other Cancers
RAF reference coefficient: 0.363
Billable: Yes
Payment year: 2026

HCC Category Mapping

V28HCC 22, Bladder, Colorectal, and Other Cancers

0.363

ESRDHCC 11, Colorectal/Bladder/and Other Cancers

Not separately weighted

RxHCCHCC 22, Prostate, Breast, Bladder, and Other Cancers and Tumors

Not separately weighted

These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.

Work C68.8 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT review for C68.8

For C68.8, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

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

Coder workflow notes

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What This Code Means

C68.8 is the ICD-10-CM diagnosis code for malignant neoplasm of overlapping sites of urinary organs. Cancer involving multiple overlapping areas of the urinary system organs, such as the urethra, bladder, or related structures. C68.8 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, C68.8 maps to Bladder, Colorectal, and Other Cancers (HCC 22) with a source-labeled community, non-dual, aged reference coefficient of 0.363. For CY2026 non-PACE Medicare Advantage, CMS uses 100% of the 2024 CMS-HCC model (V28). PACE uses a separate model blend. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes.

Use when tumor involves two or more urinary organs; document all affected sites. For C68.8, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule. 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, source-labeled coefficient references, and MEAT documentation criteria for C68.8 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Use when tumor involves two or more urinary organs; document all affected sites
•Review pathology and imaging reports to identify all involved anatomical structures

Clinical Significance

This code captures malignancies that span multiple urinary organs, indicating locally advanced disease that crosses anatomical boundaries. These tumors typically require multi-organ surgical resection (such as pelvic exenteration) and carry a higher burden of disease than single-organ involvement, reflecting greater healthcare resource needs.

Documentation Requirements

✓Pathology or imaging confirming tumor involvement across two or more distinct urinary organs
✓Documentation of which specific urinary organs are involved
✓Surgical or imaging evidence that a single-site code cannot adequately describe the extent
✓TNM staging reflecting multi-organ involvement
✓Treatment plan addressing the overlapping nature of the disease

Commonly Confused Codes

•C67.8: Overlapping sites of bladder: use when overlapping is within the bladder only; C68.8 is for involvement across different urinary organs
•C68.9: Urinary organ, unspecified: overlapping means multiple known sites; unspecified means the site is unknown
•C65-C68 individual codes: If a primary site can be identified, code the primary site rather than overlapping