2027 ICD-10-CM Diagnosis Code C79.82Secondary malignant neoplasm of genital organs
ICD-10-CM Codes›C00–D49›C76-C80›C79
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Risk Adjusts — HCC 18
- Chronic Condition
ICD-10-CM C79.82
C79.82 is a billable ICD-10-CM diagnosis code for secondary malignant neoplasm of genital organs. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 715 through 716, 722 through 724, 731 through 733, 754 through 756. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 20 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Secondary malignancies.
For Medicare Advantage risk adjustment, C79.82 maps to CMS-HCC Category 18 (Cancer Metastatic to Bone, Other and Unspecified Metastatic Cancer; Acute Leukemia Except Myeloid) under the V28 model, adding a risk factor of about 2.341 for a community, non-dual, aged beneficiary in payment year 2027.
Code Identity
ICD-10-CM Code
C79.82
Billable Status
Yes — Valid for Submission
Code Describes
Secondary malignant neoplasm of genital organs
Short Description
Secondary malignant neoplasm of genital organs
Same as the full description in the CMS dataset.
Code Classification
Medicare Risk Adjustment (HCC)Billing
C79.82 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.
CMS-HCC V28 Category (Payment Model)
HCC 18— Cancer Metastatic to Bone, Other and Unspecified Metastatic Cancer; Acute Leukemia Except Myeloid
Payment HCC · PY 2027 one of 26 ICD-10-CM codes in this category
Risk Adjustment Factor (RAF) Weight
+2.341
community, non-dual, aged · ranges 1.110–2.537 across segments
Hierarchy
Superseded by HCC 17
a more severe related category takes the payment when both are reported
Prior Model (CMS-HCC V24)
HCC 10
V24 retired V28 pays 100% of MA risk scores since PY 2026
Other CMS Models
PACE (CMS-HCC V22): HCC 10 · ESRD (V21): HCC 10 · ESRD (V24): HCC 10
ESRD V21 weights: 0.136 dialysis, 0.451–0.668 functioning graft · ESRD V24 weights: 0.111 dialysis, 0.467–0.780 functioning graft
Part D (RxHCC)
RxHCC 18 — Secondary Cancer of Lung, Liver, Brain, and Other Sites
also risk-adjusts in the Part D prescription drug model (V08)
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Adenocarcinoma of cervix
- Adenocarcinoma of prostate
- Adenoid cystic carcinoma of cervix uteri
- Adenosquamous carcinoma of cervix
- Carcinoma of prostate
- Epididymis involved by direct extension of malignant neoplasm
- Infiltrating duct carcinoma of prostate
- Lesion of clitoris
- Malignant lymphoma of testis
- Malignant neoplasm involving left fallopian tube by direct extension from endometrium
- Malignant neoplasm involving left fallopian tube by direct extension from ovary
- Malignant neoplasm involving left fallopian tube by direct extension from right fallopian tube
- Malignant neoplasm involving left fallopian tube by direct extension from uterine cervix
- Malignant neoplasm involving left fallopian tube by direct extension from uterus
- Malignant neoplasm involving left fallopian tube by direct extension from vagina
- Malignant neoplasm involving right fallopian tube by direct extension from endometrium
- Malignant neoplasm involving right fallopian tube by direct extension from left fallopian tube
- Malignant neoplasm involving right fallopian tube by direct extension from ovary
- Malignant neoplasm involving right fallopian tube by direct extension from uterine cervix
- Malignant neoplasm involving right fallopian tube by direct extension from uterus
- Malignant neoplasm involving right fallopian tube by direct extension from vagina
- Malignant neoplasm of broad ligament of uterus
- Malignant neoplasm of clitoris
- Malignant neoplasm of corpus spongiosum of penis
- Malignant neoplasm of endocervix
- Malignant neoplasm of epididymis
- Malignant neoplasm of exocervix
- Malignant neoplasm of foreskin
- Malignant neoplasm of glans penis
- Malignant neoplasm of isthmus of uterine body
- Malignant neoplasm of labia majora
- Malignant neoplasm of labia minora
- Malignant neoplasm of myometrium of corpus uteri
- Malignant neoplasm of parametrium
- Malignant neoplasm of round ligament
- Malignant neoplasm of scrotum
- Malignant neoplasm of seminal vesicle
- Malignant neoplasm of skin of penis
- Malignant neoplasm of spermatic cord
- Malignant neoplastic disease in pregnancy
- Malignant tumor involving left broad ligament by direct extension from ovary
- Malignant tumor involving prostate by direct extension from bladder
- Malignant tumor involving right broad ligament by direct extension from ovary
- Malignant tumor involving seminal vesicle by direct extension from bladder
- Malignant tumor involving seminal vesicle by direct extension from prostate
- Malignant tumor involving uterine cervix by direct extension from fallopian tube
- Malignant tumor involving uterine cervix by direct extension from ovary
- Malignant tumor involving uterine cervix by direct extension from vagina
- Malignant tumor involving uterine corpus by direct extension from bladder
- Malignant tumor involving uterine corpus by direct extension from fallopian tube
- Malignant tumor involving uterine corpus by direct extension from ovary
- Malignant tumor involving uterine corpus by direct extension from uterine cervix
- Malignant tumor involving uterine corpus by direct extension from vagina
- Malignant tumor involving vagina by direct extension from bladder
- Malignant tumor involving vagina by direct extension from endometrium
- Malignant tumor involving vagina by direct extension from fallopian tube
- Malignant tumor involving vagina by direct extension from ovary
- Malignant tumor involving vagina by direct extension from uterine cervix
- Malignant tumor involving vagina by direct extension from uterus
- Malignant tumor involving vasa deferentia by direct extension from prostate
- Malignant tumor involving vulva by direct extension from endometrium
- Malignant tumor involving vulva by direct extension from fallopian tube
- Malignant tumor involving vulva by direct extension from ovary
- Malignant tumor involving vulva by direct extension from uterine cervix
- Malignant tumor involving vulva by direct extension from uterus
- Malignant tumor involving vulva by direct extension from vagina
- Metastatic adenocarcinoma to prostate
- Metastatic adenoid cystic carcinoma to cervix uteri
- Metastatic adenosquamous carcinoma
- Metastatic adenosquamous carcinoma to cervix
- Metastatic carcinoma to cervix
- Metastatic carcinoma to endocervix
- Metastatic carcinoma to exocervix
- Metastatic carcinoma to fallopian tube
- Metastatic carcinoma to foreskin
- Metastatic carcinoma to genital organ
- Metastatic carcinoma to glans penis
- Metastatic carcinoma to penis
- Metastatic carcinoma to prostate
- Metastatic carcinoma to skin of trunk
- Metastatic carcinoma to vagina
- Metastatic infiltrating duct carcinoma to prostate
- Metastatic malignant neoplasm to body of penis
- Metastatic malignant neoplasm to body of uterus
- Metastatic malignant neoplasm to broad ligament
- Metastatic malignant neoplasm to cervix uteri
- Metastatic malignant neoplasm to clitoris
- Metastatic malignant neoplasm to endocervix
- Metastatic malignant neoplasm to endometrium
- Metastatic malignant neoplasm to epididymis
- Metastatic malignant neoplasm to epididymis and vas deferens
- Metastatic malignant neoplasm to exocervix
- Metastatic malignant neoplasm to fallopian tube
- Metastatic malignant neoplasm to female genital organ
- Metastatic malignant neoplasm to genital organ
- Metastatic malignant neoplasm to glans penis
- Metastatic malignant neoplasm to isthmus of uterus
- Metastatic malignant neoplasm to labia majora
- Metastatic malignant neoplasm to labia minora
- Metastatic malignant neoplasm to left fallopian tube
- Metastatic malignant neoplasm to male genital organ
- Metastatic malignant neoplasm to myometrium
- Metastatic malignant neoplasm to parametrium
- Metastatic malignant neoplasm to pelvic peritoneum
- Metastatic malignant neoplasm to penis
- Metastatic malignant neoplasm to placenta
- Metastatic malignant neoplasm to prepuce
- Metastatic malignant neoplasm to prostate
- Metastatic malignant neoplasm to right fallopian tube
- Metastatic malignant neoplasm to round ligament of uterus
- Metastatic malignant neoplasm to scrotum
- Metastatic malignant neoplasm to seminal vesicle
- Metastatic malignant neoplasm to skin of perineum
- Metastatic malignant neoplasm to soft tissues of perineum
- Metastatic malignant neoplasm to spermatic cord
- Metastatic malignant neoplasm to testis
- Metastatic malignant neoplasm to undescended testis
- Metastatic malignant neoplasm to uterine adnexa
- Metastatic malignant neoplasm to uterus
- Metastatic malignant neoplasm to vagina
- Metastatic malignant neoplasm to vas deferens
- Metastatic malignant neoplasm to vulva
- Metastatic neoplasm of left broad ligament
- Metastatic neoplasm of right broad ligament
- Metastatic small cell neuroendocrine carcinoma
- Metastatic small cell neuroendocrine carcinoma to prostate
- Metastatic squamous cell carcinoma to epididymis and spermatic cord
- Metastatic squamous cell carcinoma to prostate
- Metastatic transitional cell carcinoma to corpus uteri
- Metastatic undifferentiated carcinoma to body of uterus
- Myometrial invasion by tumor present
- Neoplasm of clitoris
- Neoplasm of exocervix
- Neoplasm of isthmus of uterus
- Neoplasm of labia majora
- Neoplasm of labia minora
- Neoplasm of parametrium
- Neoplasm of placenta
- Neoplasm of prepuce
- Neoplasm of round ligament of uterus
- Neoplasm of seminal vesicle
- Neoplasm of vas deferens
- Prostatic stroma involved by direct extension of malignant neoplasm
- Rete testis involved by direct extension of malignant neoplasm
- Scrotal wall involved by direct extension of malignant neoplasm
- Seminal vesicle invasion by tumor present
- Seminal vesicle involved by direct extension of malignant neoplasm
- Small cell neuroendocrine carcinoma of prostate
- Spermatic cord involved by direct extension of malignant neoplasm
- Squamous cell carcinoma of male genital
- Squamous cell carcinoma of prostate
- Transitional cell carcinoma of corpus uteri
- Tumor invasion into paratesticular structures
- Tumor invasion into tunica albuginea
- Tunica vaginalis involved by direct extension of malignant neoplasm
- Undifferentiated carcinoma of corpus uteri
- Uterus and uterine adnexa involved by direct extension of malignant neoplasm
- Vagina involved by direct extension of malignant neoplasm
- Vaginal intraepithelial neoplasia
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to C79.82: its own notes plus those printed at C79 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Notes
General instructions on how these codes are used.
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name C79.82, its category, or a range that includes it.
Applicable To 2
These notes mention C79.82.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
CCSR NEO070
Secondary malignancies
Default principal diagnosis: inpatient Yes · outpatient Yes
Clinical InformationClinical
Metastatic Malignant Neoplasm in the Reproductive System
the spread of a malignant neoplasm to the male or female reproductive system from an adjacent or distant anatomic site.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| Bartholin's gland | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| broad ligament | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| cervix (cervical) (uteri) (uterus) | C53.9 | C79.82 | D06.9 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › canal | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › endocervix (canal) (gland) | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › exocervix | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › external os | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › internal os | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › nabothian gland | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › squamocolumnar junction | C53.8 | C79.82 | D06.7 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › stump | C53.8 | C79.82 | D06.7 | D26.0 | D39.0 | D49.59 |
| clitoris | C51.2 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| cord (true) (vocal) › spermatic | C63.1 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| corpus › cavernosum | C60.2 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| corpus › penis | C60.2 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| corpus › uteri | C54.9 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| corpus › uteri › isthmus | C54.0 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| ejaculatory duct | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| endocervix (canal) (gland) | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| endometrium (gland) (stroma) | C54.1 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| epididymis | C63.0 | C79.82 | D07.69 | D29.3 | D40.8 | D49.59 |
| exocervix | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| external › os, cervix uteri | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| fallopian tube (accessory) | C57.0 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| fetal membrane | C58 | C79.82 | D07.0 | D26.7 | D39.2 | D49.59 |
| follicle, nabothian | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| foreskin | C60.0 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| fornix › vagina | C52 | C79.82 | D07.2 | D28.1 | D39.8 | D49.59 |
| fourchette | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| fundus › uterus | C54.3 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| Gartner's duct | C52 | C79.82 | D07.2 | D28.1 | D39.8 | D49.59 |
| genital organ or tract › female NEC | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| genital organ or tract › female NEC › specified site NEC | C57.7 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| genital organ or tract › male NEC | C63.9 | C79.82 | D07.60 | D29.9 | D40.9 | D49.59 |
| genital organ or tract › male NEC › specified site NEC | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| genitourinary tract › female | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| genitourinary tract › male | C63.9 | C79.82 | D07.60 | D29.9 | D40.9 | D49.59 |
| glans penis | C60.1 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| hymen | C52 | C79.82 | D07.2 | D28.1 | D39.8 | D49.59 |
| internal › os (cervix) | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| isthmus uteri | C54.0 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| junction › squamocolumnar, of cervix | C53.8 | C79.82 | D06.7 | D26.0 | D39.0 | D49.59 |
| labia (skin) | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| labia (skin) › majora | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| labia (skin) › minora | C51.1 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| labium (skin) | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| labium (skin) › majus | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| labium (skin) › minus | C51.1 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › broad | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › Mackenrodt's | C57.7 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › round | C57.2 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › sacro-uterine | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › uterine | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › utero-ovarian | C57.7 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| ligament [See Also: Neoplasm, connective tissue] › uterosacral | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| Mackenrodt's ligament | C57.7 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| mesosalpinx | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| mesovarium | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| mons › pubis | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| mons › veneris | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| Mullerian duct › female | C57.7 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| Mullerian duct › male | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| myometrium | C54.2 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| nabothian gland (follicle) | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| os › external | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| os › internal | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| oviduct | C57.0 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| parametrium | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| paroophoron | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| parovarium | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| penis | C60.9 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| penis › body | C60.2 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| penis › corpus (cavernosum) | C60.2 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| penis › glans | C60.1 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| penis › skin NEC | C60.9 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| placenta | C58 | C79.82 | D07.0 | D26.7 | D39.2 | D49.59 |
| prepuce | C60.0 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| prostate (gland) | C61 | C79.82 | D07.5 | D29.1 | D40.0 | D49.59 |
| pudenda, pudendum (femaie) | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| round ligament | C57.2 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| sacrouterine ligament | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| salpinx (uterine) | C57.0 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| scrotum (skin) | C63.2 | C79.82 | D07.61 | D29.4 | D40.8 | D49.59 |
| seminal vesicle | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| septum › urethrovaginal | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| septum › vesicovaginal | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| skin NOS › clitoris | C51.2 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) › clitoris | C51.2 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) › labium NEC | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) › labium NEC › majus | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) › labium NEC › minus | C51.1 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) › pudendum | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › female genital organs (external) › vulva | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › labia › majora | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › labia › minora | C51.1 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| skin NOS › male genital organs | C63.9 | C79.82 | D07.60 | D29.9 | D40.8 | D49.59 |
| skin NOS › male genital organs › penis | C60.9 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| skin NOS › male genital organs › prepuce | C60.0 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| skin NOS › male genital organs › scrotum | C63.2 | C79.82 | D07.61 | D29.4 | D40.8 | D49.59 |
| skin NOS › penis NEC | C60.9 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| skin NOS › prepuce | C60.0 | C79.82 | D07.4 | D29.0 | D40.8 | D49.59 |
| skin NOS › scrotum | C63.2 | C79.82 | D07.61 | D29.4 | D40.8 | D49.59 |
| skin NOS › vulva | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| spermatic cord | C63.1 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| stroma, endometrial | C54.1 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| stump, cervical | C53.8 | C79.82 | D06.7 | D26.0 | D39.0 | D49.59 |
| testis, testes | C62.9 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › descended | C62.1 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › ectopic | C62.0 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › retained | C62.0 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › scrotal | C62.1 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › undescended | C62.0 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › unspecified whether descended or undescended | C62.9 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| tubo-ovarian | C57.8 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| tunica vaginalis | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| urethrovaginal (septum) | C57.9 | C79.82 | D07.30 | D28.9 | D39.8 | D49.59 |
| utero-ovarian | C57.8 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| utero-ovarian › ligament | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| uterosacral ligament | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| uterus, uteri, uterine | C55 | C79.82 | D07.0 | D26.9 | D39.0 | D49.59 |
| uterus, uteri, uterine › adnexa NEC | C57.4 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| uterus, uteri, uterine › body | C54.9 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › cervix | C53.9 | C79.82 | D06.9 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › cornu | C54.9 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › corpus | C54.9 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › endocervix (canal) (gland) | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › endometrium | C54.1 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › exocervix | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › external os | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › fundus | C54.3 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › internal os | C53.0 | C79.82 | D06.0 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › isthmus | C54.0 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › ligament | C57.3 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| uterus, uteri, uterine › ligament › broad | C57.1 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| uterus, uteri, uterine › ligament › round | C57.2 | C79.82 | – | D28.2 | D39.8 | D49.59 |
| uterus, uteri, uterine › lower segment | C54.0 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › myometrium | C54.2 | C79.82 | D07.0 | D26.1 | D39.0 | D49.59 |
| uterus, uteri, uterine › squamocolumnar junction | C53.8 | C79.82 | D06.7 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › tube | C57.0 | C79.82 | D07.39 | D28.2 | D39.8 | D49.59 |
| vagina, vaginal (fornix) (vault) (wall) | C52 | C79.82 | D07.2 | D28.1 | D39.8 | D49.59 |
| vaginovesical | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vaginovesical › septum | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vas deferens | C63.1 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| vesicle, seminal | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
| vesicocervical tissue | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vesicorectal | C76.3 | C79.82 | D09.8 | D36.7 | D48.7 | D49.89 |
| vesicovaginal | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vesicovaginal › septum | C57.9 | C79.82 | D07.30 | D28.9 | D39.8 | D49.59 |
| vestibular gland, greater | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| vulva | C51.9 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| vulvovaginal gland | C51.0 | C79.82 | D07.1 | D28.0 | D39.8 | D49.59 |
| wolffian (body) (duct) › female | C57.7 | C79.82 | D07.39 | D28.7 | D39.8 | D49.59 |
| wolffian (body) (duct) › male | C63.7 | C79.82 | D07.69 | D29.8 | D40.8 | D49.59 |
Patient EducationClinical
Cancer
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Convert C79.82 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.
Questions About C79.82Overview
What is the ICD-10 code for secondary malignant neoplasm of genital organs?
The ICD-10-CM code for secondary malignant neoplasm of genital organs is C79.82 (sometimes written as C7982). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is C79.82 (Secondary malignant neoplasm of other specified sites) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report secondary malignant neoplasm of genital organs on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does C79.82 group to?
When secondary malignant neoplasm of genital organs is the principal diagnosis on an inpatient stay, it groups to MS-DRG 716, 723, 732, 755, 756, 724, 754, 733, 715, 731, 722, with relative weights from 0.5709 to 3.5462 depending on complications. Higher weights mean higher Medicare reimbursement.
Is C79.82 a CC or MCC?
CMS lists C79.82 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 20 closely related codes in its exclusion list.
Can C79.82 be reported with a code from C7B?
Not as a rule. The Excludes1 note at C79, which applies to C79.82, lists "secondary carcinoid tumors (C7B.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What HCC is C79.82?
C79.82 (secondary malignant neoplasm of genital organs) maps to CMS-HCC Category 18 (Cancer Metastatic to Bone, Other and Unspecified Metastatic Cancer; Acute Leukemia Except Myeloid), commonly written as HCC 18, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 10 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. In the Part D prescription drug model it maps to RxHCC 18.
Does C79.82 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, C79.82 adds a risk adjustment factor of about 2.341 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 1.110 to 2.537 depending on the payment segment). A more severe related category (HCC 17) supersedes it when both are reported. See the full factor table on the HCC 18 category page.
