Skip to main content

N99.85 ICD-10-CM Code: Post endometrial ablation syndrome

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

Coding at a Glance

Tabular directives
3 Excludes2

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

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

  • MS-DRG 760 — MENSTRUAL AND OTHER FEMALE REPRODUCTIVE SYSTEM DISORDERS WITH CC/MCC (MDC 13)
  • MS-DRG 761 — MENSTRUAL AND OTHER FEMALE REPRODUCTIVE SYSTEM DISORDERS WITHOUT CC/MCC (MDC 13)

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.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for N99.85 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on N99.85 itself; “inherited from” names the category or block whose note applies here.

Excludes2 — Not Included Here

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

Source: inherited from N99

Coder workflow for N99.85

MedCoder structured workflow — derived from this code’s own official record

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

Official instructions as workflow

  • Excludes2 — not part of N99.85(3 notes)

    Coding workflow: The conditions named in this note are not included in N99.85. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareN30.4, M80.8, M81.8

    See the official tabular notes · Guidelines I.A.12.b

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Post endometrial ablation syndrome is a billable ICD-10-CM diagnosis code (N99.85).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (1)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

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

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name N99.85 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 10 Excludes2 notes: T80 — Complications following infusion, transfusion and therapeutic injection (via N99.-), T80-T88 — Complications of surgical and medical care, not elsewhere classified (T80-T88) (via N99.-), T81 — Complications of procedures, not elsewhere classified (via N99.-), T82 — Complications of cardiac and vascular prosthetic devices, implants and grafts (via N99.-), T83 — Complications of genitourinary prosthetic devices, implants and grafts (via N99.-), T84 — Complications of internal orthopedic prosthetic devices, implants and grafts (via N99.-), T85 — Complications of other internal prosthetic devices, implants and grafts (via N99.-), T86 — Complications of transplanted organs and tissue (via N99.-), T87 — Complications peculiar to reattachment and amputation (via N99.-), T88 — Other complications of surgical and medical care, not elsewhere classified (via N99.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 2 MS-DRGs: DRG 760 (MDC 13), DRG 761 (MDC 13).

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

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.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Postprocedural or postoperative genitourinary system complication).

N99.528 — Other complication of incontinent external stoma of urinary tract, N99.530 — Hemorrhage of continent stoma of urinary tract, N99.531 — Infection of continent stoma of urinary tract, N99.532 — Malfunction of continent stoma of urinary tract, N99.533 — Herniation of continent stoma of urinary tract, N99.534 — Stenosis of continent stoma of urinary tract, N99.538 — Other complication of continent stoma of urinary tract, N99.61 — Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating a genitourinary system procedure, N99.62 — Intraoperative hemorrhage and hematoma of a genitourinary system organ or structure complicating other procedure, N99.71 — Accidental puncture and laceration of a genitourinary system organ or structure during a genitourinary system procedure, N99.72 — Accidental puncture and laceration of a genitourinary system organ or structure during other procedure, N99.81 — Other intraoperative complications of genitourinary system, N99.820 — Postprocedural hemorrhage of a genitourinary system organ or structure following a genitourinary system procedure, N99.821 — Postprocedural hemorrhage of a genitourinary system organ or structure following other procedure, N99.83 — Residual ovary syndrome, 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, N99.842 — Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure, N99.843 — Postprocedural seroma of a genitourinary system organ or structure following other procedure, N99.89 — Other postprocedural complications and disorders of genitourinary system, +27 more

Contextual Map

Every relationship of N99.85 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.

Run N99.85 with these 8 related codes in Claim Check

Hierarchy

Referenced by Excludes2 notes (10)

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 13 — Diseases and Disorders of the Female Reproductive System[MDC crossing]: “Diseases and Disorders of the Female Reproductive System — 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. 2,232 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

  • Syndrome, post endometrial ablation[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (40)

Change history

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "N99.85 — Post endometrial ablation syndrome." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/n99.85-post-endometrial-ablation-syndrome

Change history

  • FY2020 — October 1, 2019
    Added to the code set
    Post endometrial ablation syndrome
    FY2020 changes

Nearest Codes in This Family

Official ICD-10-CM classifications closest to N99.85 in its code family, with their registry titles.

View all codes in the N99 family