Skip to main content
ICD-10/N99.842

N99.842 ICD-10-CM Code: Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 919 — COMPLICATIONS OF TREATMENT WITH MCC (MDC 21)
  • MS-DRG 920 — COMPLICATIONS OF TREATMENT WITH CC (MDC 21)
  • MS-DRG 921 — COMPLICATIONS OF TREATMENT WITHOUT CC/MCC (MDC 21)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure is a billable ICD-10-CM diagnosis code (N99.842).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for N99.842 in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Change history

  • FY2017 — 2016-10-01
    Added to the code set
    Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure
    FY2017 changes

Verify Before Coding

  • CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Contextual Map

Every relationship of N99.842 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • N00-N99 — Chapter 14: Diseases of the Genitourinary System (N00-N99) (N00-N99) [Hierarchy]
  • N99-N99 — Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified [Hierarchy]

Referenced by Excludes2 notes (10)

  • T80 — Complications following infusion, transfusion and therapeutic injection [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • T80-T88 — Complications of surgical and medical care, not elsewhere classified (T80-T88) [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • T81 — Complications of procedures, not elsewhere classified [Excludes2](via N99.-): “intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-)” · check together
  • T82 — Complications of cardiac and vascular prosthetic devices, implants and grafts [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • T83 — Complications of genitourinary prosthetic devices, implants and grafts [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • T84 — Complications of internal orthopedic prosthetic devices, implants and grafts [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • T85 — Complications of other internal prosthetic devices, implants and grafts [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • T86 — Complications of transplanted organs and tissue [Excludes2](via N99.-): “intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-)” · check together
  • and 2 more

Clinical classification (CCSR)

  • GEN026 — Postprocedural or postoperative genitourinary system complication [CCSR]

Potential MS-DRG

  • CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”
  • DRG 919 — COMPLICATIONS OF TREATMENT WITH MCC [MS-DRG]: “COMPLICATIONS OF TREATMENT WITH MCC (MDC 21)”
  • DRG 920 — COMPLICATIONS OF TREATMENT WITH CC [MS-DRG]: “COMPLICATIONS OF TREATMENT WITH CC (MDC 21)”
  • DRG 921 — COMPLICATIONS OF TREATMENT WITHOUT CC/MCC [MS-DRG]: “COMPLICATIONS OF TREATMENT WITHOUT CC/MCC (MDC 21)”

MDC crossing · procedures (32029)

  • MDC 21 — Injuries, Poisonings and Toxic Effects of Drugs [MDC crossing]: “Injuries, Poisonings and Toxic Effects of Drugs — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • 0016070 — Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.” · check together
  • 0016071 — Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.” · check together
  • 0016072 — Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.” · check together
  • 0016073 — Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.” · check together
  • 0016074 — Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach — grouped in MDC 21, the procedure side of this code's crossing.” · check together
  • and 32024 more

Index entries

  • Complication (s) (from) (of), postprocedural, seroma (of), genitourinary organ or structure, following procedure on genitourinary organ or structure[Index term]

Nearest codes (40)

  • N99 — Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified [Sibling]
  • N99.51 — Complication of cystostomy [Sibling]
  • N99.510 — Cystostomy hemorrhage [Sibling]
  • N99.511 — Cystostomy infection [Sibling]
  • N99.512 — Cystostomy malfunction [Sibling]
  • N99.518 — Other cystostomy complication [Sibling]
  • N99.52 — Complication of incontinent external stoma of urinary tract [Sibling]
  • N99.520 — Hemorrhage of incontinent external stoma of urinary tract [Sibling]
  • and 32 more

Change history

  • FY2017 — Added to the code set [Change history]

Referenced by Other Codes

Clinical classification (AHRQ CCSR):GEN026 — Postprocedural or postoperative genitourinary system complication (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 76 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 3 MS-DRGs: DRG 919 (MDC 21), DRG 920 (MDC 21), DRG 921 (MDC 21).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name N99.842 or its code family.

10 Excludes2 notes: T80 (via N99.-), T80-T88 (via N99.-), T81 (via N99.-), T82 (via N99.-), T83 (via N99.-), T84 (via N99.-), T85 (via N99.-), T86 (via N99.-), T87 (via N99.-), T88 (via N99.-).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to N99.842 in its code family, with their registry titles.

  • N99.821 — Postprocedural hemorrhage of a genitourinary system organ or structure following other procedure
  • N99.83 — Residual ovary syndrome
  • N99.84 — Postprocedural hematoma and seroma of a genitourinary system organ or structure following a procedure
  • N99.840 — Postprocedural hematoma of a genitourinary system organ or structure following a genitourinary system procedure
  • N99.841 — Postprocedural hematoma of a genitourinary system organ or structure following other procedure
  • N99.843 — Postprocedural seroma of a genitourinary system organ or structure following other procedure
  • N99.85 — Post endometrial ablation syndrome
  • N99.86 — Intraoperative and postprocedural complications and disorders of breast
  • N99.860 — Intraoperative and postprocedural nipple ischemia
  • N99.861 — Intraoperative and postprocedural nipple necrosis

View all codes in the N99 family

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Complication (s) (from) (of), postprocedural, seroma (of), genitourinary organ or structure, following procedure on genitourinary organ or structure