N99.843 — Postprocedural seroma of a genitourinary system organ or structure following other procedure
N99.843 is a billable, specific ICD-10-CM code for postprocedural seroma of a genitourinary system organ or structure following other procedure. It is valid for submission on a claim.
Excludes2 inherited from the categories above N99.843
Also inherited, and the opposite of Excludes1: these conditions are not part of N99.843, but a patient can have both, so you may code both.
Written on N99 — Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified
Risk adjustment
N99.843 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
N99.843 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How N99.843 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N99.843.
- Complication›postprocedural›seroma›genitourinary organ or structure›following procedure on other organ
Code history
N99.843 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share N99.84. If N99.843 is not quite right, the correct code is usually one of these.
- N99.840Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure
- N99.841Postprocedural hematoma of a genitourinary system organ or structure following other procedure
- N99.842Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure
Questions about N99.843
- Is N99.843 a billable ICD-10-CM code?
- Yes. N99.843 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N99.843 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99).