What is ICD-10 code C63.7?

C63.7 is the ICD-10-CM diagnosis code for Malignant neoplasm of other specified male genital organs. Cancer of other male reproductive organs not specifically listed, such as the seminal vesicles or bulbourethral glands. It belongs to the ICD-10-CM chapter for neoplasms (c00-d49). C63.7 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. C63.7 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Yes. C63.7 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. C63.7 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

Which HCC does C63.7 map to under V28?

C63.7 maps to CMS-HCC V28 23 (Prostate, Breast, and Other Cancers and Tumors). The category number and label come from the CMS-HCC V28 model file for payment year 2026.

What does C63.7 pay in RAF?

C63.7 carries a community, non-dual, aged (CNA) RAF weight of 0.186 under CMS-HCC V28 for payment year 2026. The weight comes from the CMS V28 relative-factor file, not a hand-typed table.

What is the V28 vs V24 difference for C63.7?

CMS phased in the V28 risk adjustment model over payment years 2024 (33%), 2025 (67%), and 2026 (100%), replacing V24. V28 consolidates HCC categories, removes some lower-acuity conditions, and recalibrates RAF weights across the entire model. For C63.7, V28 maps to Prostate, Breast, and Other Cancers and Tumors at RAF 0.186 while V24 mapped to Breast, Prostate, and Other Cancers and Tumors at RAF 0.150. Both models can still appear in legacy data and in payer-specific lookback periods.

2026 ICD-10-CM C63.7: Malignant neoplasm of other

C63.7 maps to CMS-HCC V28 23 (RAF 0.186). Documentation must support MEAT. MEAT criteria · RAF calculator · HCC Buddy coding tools

ICD-10-CM Code View

HCC Buddy Code Card

Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.

Code lookupC63.7Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Neoplasms (C00-D49) / Malignant neoplasms of male genital organs (C60-C63)

C63.7

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

Malignant neoplasm of other specified male genital organs

Cancer of other male reproductive organs not specifically listed, such as the seminal vesicles or bulbourethral glands.

Buddy Insight

This code covers malignancies of specified male genital organs not classified elsewhere, such as the seminal vesicles, tunica vaginalis, or bulbourethral (Cowper) glands.

CMS-HCC V28

Mapped

HCC 23

Prostate, Breast, and Other C...

RAF 0.186

CMS-HCC V24

Mapped

HCC 12

Breast, Prostate, and Other C...

RAF 0.150

ACA/HHS

Mapped

HCC 13

HHS-HCC 13

Varies by metal level

ESRD/PACE

Mapped

HCC 12

Breast, Prostate, and Other C...

RAF 0.045

RXHCC

Mapped

HCC 22

Cancer, Other Specified Sites

RAF 0.124

Code Book Path

Official

C63Malignant neoplasm of other and unspecified male genital organs

C63.7Malignant neoplasm of other specified male genital organs

Inclusion Terms

Official

Malignant neoplasm of seminal vesicle
Malignant neoplasm of tunica vaginalis

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for C63.7 in this effective period.

Related Child Codes

Official

C63.0Malignant neoplasm of epididymis

C63.1Malignant neoplasm of spermatic cord

C63.2Malignant neoplasm of scrotum

C63.8Malignant neoplasm of overlapping sites of male genital organs

C63.9Malignant neoplasm of male genital organ, unspecified

Includes

Official

ICD-10-CM does not list Includes notes for C63.7 in this effective period.

Excludes 1

Official

ICD-10-CM does not list Excludes 1 notes for C63.7 in this effective period.

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for C63.7 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for C63.7 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for C63.7 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

Documentation identifying which specific male genital organ is involved

Pathologic confirmation of malignancy with histologic type

Whether the cancer is primary or metastatic (seminal vesicle involvement is often secondary to prostate cancer)

Staging information

MEAT Support

HCC Buddy guidance

Documentation identifying which specific male genital organ is involved

Pathologic confirmation of malignancy with histologic type

Whether the cancer is primary or metastatic (seminal vesicle involvement is often secondary to prostate cancer)

Staging information

Audit Caution

HCC Buddy guidance

Coding prostate cancer extending into seminal vesicles as C63.7 — this is T3b prostate cancer coded as C61

Using C63.7 without documenting which specific organ is involved

Confusing 'other specified' with 'unspecified' — C63.7 requires a documented organ not covered by other C63 codes

Common Mistakes

HCC Buddy guidance

C63.9 — Unspecified male genital organ; C63.7 requires a named specific organ

C61 — Prostate cancer; seminal vesicle invasion from prostate cancer is staged as T3b, not coded separately

C63.8 — Overlapping male genital organs; use C63.7 for a single specified structure

D29.8 — Benign neoplasm of other specified male genital organs; confirm malignancy

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 C63.7 an HCC code?

Yes. C63.7 (Malignant neoplasm of other specified male genital organs) maps to Prostate, Breast, and Other Cancers and Tumors under the CMS-HCC V28 risk adjustment model (and Breast, Prostate, and Other Cancers and Tumors under V24), with a community non-dual aged RAF of 0.186. It is billable for payment year 2026.

Coder answer: C63.7 is billable and maps to V28 HCC 23, Prostate, Breast, and Other Cancers and Tumors. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code: C63.7
Description: Malignant neoplasm of other specified male genital organs
HCC (V28): HCC 23 — Prostate, Breast, and Other Cancers and Tumors
RAF: 0.186
Billable: Yes
Payment year: 2026

HCC Category Mapping

V28HCC 23, Prostate, Breast, and Other Cancers and Tumors

0.186

V24HCC 12, Breast, Prostate, and Other Cancers and Tumors

0.150

ESRDHCC 12, Breast, Prostate, and Other Cancers and Tumors

0.045

RxHCCHCC 22, Cancer, Other Specified Sites

0.124

Each model's RAF is its CMS base weight for that model's standard population, so 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 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.

Work C63.7 in the Code Book — tabular path, V28 RAF, and MEAT checklist →

MEAT Criteria for C63.7

For C63.7 to 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 C63.7 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

Get the V28 RAF + MEAT cheat sheet

One printable page: confirm a code's V28 HCC status, its RAF weight, and the MEAT your note needs to make it stick. Free, no card.

Free PDF. No card. Unsubscribe anytime.

What This Code Means

C63.7 is the ICD-10-CM diagnosis code for malignant neoplasm of other specified male genital organs. Cancer of other male reproductive organs not specifically listed, such as the seminal vesicles or bulbourethral glands. C63.7 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering malignant neoplasms of male genital organs (c60-c63).

Under the CMS-HCC V28 risk adjustment model, C63.7 maps to Prostate, Breast, and Other Cancers and Tumors (HCC 23) with a community, non-dual, aged base RAF weight of 0.186. Under the older CMS-HCC V24 model, C63.7 maps to Breast, Prostate, and Other Cancers and Tumors (HCC 12) with a community, non-dual, aged base RAF weight of 0.150. 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.

Use this code only when the specific male genital organ site is documented but doesn't fit other C63 codes. Because C63.7 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 C63.7 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Use this code only when the specific male genital organ site is documented but doesn't fit other C63 codes
•Query the provider if the specific organ site can be identified for more precise coding

Clinical Significance

This code covers malignancies of specified male genital organs not classified elsewhere, such as the seminal vesicles, tunica vaginalis, or bulbourethral (Cowper) glands. These are extremely rare cancers where accurate anatomical documentation is essential because each structure has a distinct surgical and oncologic management approach.

Documentation Requirements

✓Documentation identifying which specific male genital organ is involved
✓Pathologic confirmation of malignancy with histologic type
✓Whether the cancer is primary or metastatic (seminal vesicle involvement is often secondary to prostate cancer)
✓Staging information
✓Treatment plan

Commonly Confused Codes

•C63.9: Unspecified male genital organ; C63.7 requires a named specific organ
•C61: Prostate cancer; seminal vesicle invasion from prostate cancer is staged as T3b, not coded separately
•C63.8: Overlapping male genital organs; use C63.7 for a single specified structure
•D29.8: Benign neoplasm of other specified male genital organs; confirm malignancy