N48.21 Abscess of corpus cavernosum and penis
The ICD-10-CM code for Abscess of corpus cavernosum and penis is N48.21 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- N40-N53: Diseases of male genital organs (N40-N53)
- Category N48
- 21 codes (17 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to N48.21:
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › parafrenal
- Furuncle › corpus cavernosum
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › penis
- Carbuncle › penis
- Carbuncle › corpus cavernosum
- Furuncle › penis
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › corpus › cavernosum
- Disease, diseased › inflammatory › penis › abscess
U.S. Hospital Utilization
- An estimated 1,460 U.S. inpatient stays in 2023 included N48.21 among the documented diagnoses.
- 455 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
CKD staging and code assignment (N18.-)The ICD-10-CM classifies CKD based on severity. The severity of CKD is designated by stages 1-5. Stage 2, code N18.2, equates to mild CKD; stage 3, codes N18.30-N18.32, equate to moderate CKD; and stage 4, code N18.4, equates to severe CKD. Code N18.6, End stage renal disease (ESRD), is assigned when the provider has documented end- stage renal disease (ESRD).
CKD stage plus ESRD: assign N18.6 onlyIf both a stage of CKD and ESRD are documented, assign code N18.6 only.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026