ICD-10-CM 2027 diagnosis code
N49.3Fournier gangrene
N49.3 is a valid, billable ICD-10-CM code for fournier gangrene. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Looking up by condition? See ICD-10 code for Fournier gangrene, ICD-10 code for Fournier gangrene disease, ICD-10 code for Fournier disease or gangrene.
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 N49.3
N49.3 is the ICD-10-CM diagnosis code for Fournier gangrene. It belongs to category N49 (inflammatory disorders of male genital organs, not elsewhere classified), block N40-N53 (diseases of male genital organs) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within N49 (inflammatory disorders of male genital organs, not elsewhere classified), N49.3 is specifically for Fournier gangrene. Related codes cover inflammatory disorders of seminal vesicle (N49.0), inflammatory disorders of spermatic cord, tunica vaginalis and vas deferens (N49.1), inflammatory disorders of scrotum (N49.2), inflammatory disorders of other specified male genital organs (N49.8) and inflammatory disorder of unspecified male genital organ (N49.9).
Use an additional code (B95-B97), to identify infectious agent.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 727 (Inflammation of the Male Reproductive System with MCC, relative weight 1.37) and DRG 728 (Inflammation of the Male Reproductive System without MCC, relative weight 0.8224), in MDC 12 (Diseases and Disorders of the Male 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 is on the CMS list of diagnoses consistent only with male patients (the sex-conflict edit itself was retired in FY2025).
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 608.4 (other inflammatory disorders of male genital organs).
Notes that apply from higher levels
Instructions written at a parent level also apply to N49.3.
Broader instructions also apply from Chapter 14: Diseases of the genitourinary system.
Alphabetic index entries
4 entriesTerms in the official ICD-10-CM index that lead to N49.3.
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.
MDC 12 · Diseases and Disorders of the Male Reproductive System
ICD-9-CM equivalent
Converter →- 608.4Other inflammatory disorders of male genital organsapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about N49.3
Is N49.3 billable?
- Yes. N49.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N49.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N49.3 as a principal diagnosis.
Is N49.3 a CC or MCC?
- No. N49.3 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does N49.3 group to?
- N49.3 is used in the MS-DRG v44.0 logic for MS-DRG 727 (Inflammation of the Male Reproductive System with MCC) and MS-DRG 728 (Inflammation of the Male Reproductive System without MCC). 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 N49.3?
- The CMS General Equivalence Mappings map N49.3 to ICD-9-CM 608.4.