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ICD-10-CM 2027 diagnosis code

C79.82Secondary malignant neoplasm of genital organs

✓ Billable / specificCC — complication/comorbidity

C79.82 is a valid, billable ICD-10-CM code for secondary malignant neoplasm of genital organs. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About C79.82

C79.82 is the ICD-10-CM diagnosis code for secondary malignant neoplasm of genital organs. It belongs to category C79 (secondary malignant neoplasm of other and unspecified sites), block C76-C80 (malignant neoplasms of ill-defined, other secondary and unspecified sites) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within C79.8 (secondary malignant neoplasm of other specified sites), C79.82 is specifically for secondary malignant neoplasm of genital organs. Related codes cover breast (C79.81), oral cavity (C79.83) and other specified sites (C79.89).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 715 (Male Reproductive System and Other O.R. Procedures for Malignancy with CC/MCC, relative weight 2.2906), DRG 716 (Male Reproductive System and Other O.R. Procedures for Malignancy without CC/MCC, relative weight 1.4619), DRG 722 (Malignancy, Male Reproductive System with MCC, relative weight 1.6689), DRG 723 (Malignancy, Male Reproductive System with CC, relative weight 1.0697), DRG 724 (Malignancy, Male Reproductive System without CC/MCC, relative weight 0.5901), DRG 731 (Uterine and Adnexa Procedures for Malignancy with MCC, relative weight 3.5478) and 5 more, in MDC 12 (Diseases and Disorders of the Male Reproductive System) and MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 198.82 (secondary malignant neoplasm of genital organs).

Notes that apply from higher levels

Instructions written at a parent level also apply to C79.82.

› From C79 Secondary malignant neoplasm of other and unspecified sites
Excludes1
  • secondary carcinoid tumors (C7B.-)
  • secondary neuroendocrine tumors (C7B.-)

Broader instructions also apply from Chapter 2: Neoplasms.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to C79.82.

Table of Drugs & Neoplasms entries

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 198.82Secondary malignant neoplasm of genital organsexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about C79.82

Is C79.82 billable?

Yes. C79.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can C79.82 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict C79.82 as a principal diagnosis.

Is C79.82 a CC or MCC?

C79.82 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does C79.82 group to?

C79.82 is used in the MS-DRG v44.0 logic for MS-DRG 715 (Male Reproductive System and Other O.R. Procedures for Malignancy with CC/MCC), MS-DRG 716 (Male Reproductive System and Other O.R. Procedures for Malignancy without CC/MCC), MS-DRG 722 (Malignancy, Male Reproductive System with MCC), MS-DRG 723 (Malignancy, Male Reproductive System with CC), MS-DRG 724 (Malignancy, Male Reproductive System without CC/MCC), MS-DRG 731 (Uterine and Adnexa Procedures for Malignancy with MCC) and 5 more. Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for C79.82?

The CMS General Equivalence Mappings map C79.82 to ICD-9-CM 198.82.