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Y92.828 ICD-10-CM Code: Other wilderness area as the place of occurrence of the external cause

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

Coding at a Glance

Tabular directives
4 inclusion terms

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for Y92.828 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on Y92.828 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Swamp as the place of occurrence of the external cause
  • Mountain as the place of occurrence of the external cause
  • Marsh as the place of occurrence of the external cause
  • Prairie as the place of occurrence of the external cause

Coder workflow for Y92.828

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

Before you code Y92.828

  1. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on Y92.828; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

    ReviewY92.820, Y92.821

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

  2. An external cause code is reported in addition to the code for the injury or condition, never as the principal or first-listed diagnosis. Confirm the cause, intent, place of occurrence, activity and status where the record documents them, and assign the 7th character that matches the injury code. External cause coding guidelines (Guidelines I.C.20.a).

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).
Any detail beyond this code’s title
What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

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

Other wilderness area as the place of occurrence of the external cause is a billable ICD-10-CM diagnosis code (Y92.828).

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

Indexed As (15)

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

Circumstance phrases from the official ICD-10-CM External Cause of Injuries Index that map to this code.

  • Place of occurrence, hill
  • Place of occurrence, lake, wilderness
  • Place of occurrence, marsh
  • Place of occurrence, mountain
  • Place of occurrence, pond
  • Place of occurrence, prairie
  • Place of occurrence, river
  • Place of occurrence, stream
  • Place of occurrence, swamp
  • Place of occurrence, wilderness area
  • Place of occurrence, wilderness area, marsh
  • Place of occurrence, wilderness area, mountain
  • Place of occurrence, wilderness area, prairie
  • Place of occurrence, wilderness area, specified NEC
  • Place of occurrence, wilderness area, swamp

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Verbatim excerpts from the ICD-10-CM Official Guidelines for Coding and Reporting (CMS/NCHS) that govern this code.

Chapter 20: External Causes of Morbidity (V00-Y99)

b. Place of Occurrence Guideline Codes from category Y92, Place of occurrence of the external cause, are secondary codes for use after other external cause codes to identify the location of the patient at the time of injury or other condition.

Chapter 20: External Causes of Morbidity (V00-Y99)

Generally, a place of occurrence code is assigned only once, at the initial encounter for treatment. However, in the rare instance that a new injury occurs during hospitalization, an additional place of occurrence code may be assigned. No 7 th characters are used for Y92.

Chapter 20: External Causes of Morbidity (V00-Y99)

1) Cause of injury identified by the Federal Government (FBI) as terrorism When the cause of an injury is identified by the Federal Government (FBI) as terrorism, the first-listed external cause code should be a code from category Y38, Terrorism. The definition of terrorism employed by the FBI is found at the inclusion note at the beginning of category Y38. Use additional code for place of occurrence (Y92.-). More than one Y38 code may be assigned if the injury is the result of more than one mechanism of terrorism.

Verify Before Coding

  • Principal-diagnosis restriction. External cause of morbidity codes (V, W, X and Y) describe the circumstance that caused an injury, not the condition treated. The Medicare Code Editor rejects them as a principal diagnosis; sequence the injury or condition first and report this code as secondary.

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 Y92.828 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 2 Use Additional Code instructions: V00 — Pedestrian conveyance accident (via Y92.-), Y38 — Terrorism (via Y92.-).

These codes instruct coders to additionally report this code when it applies.

Clinical classification (AHRQ CCSR):EXT027 — External cause codes: place of occurrence of the external cause.

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 (External cause codes: place of occurrence of the external cause).

Y92.810 — Car as the place of occurrence of the external cause, Y92.811 — Bus as the place of occurrence of the external cause, Y92.812 — Truck as the place of occurrence of the external cause, Y92.813 — Airplane as the place of occurrence of the external cause, Y92.814 — Boat as the place of occurrence of the external cause, Y92.815 — Train as the place of occurrence of the external cause, Y92.816 — Subway car as the place of occurrence of the external cause, Y92.818 — Other transport vehicle as the place of occurrence of the external cause, Y92.820 — Desert as the place of occurrence of the external cause, Y92.821 — Forest as the place of occurrence of the external cause, Y92.830 — Public park as the place of occurrence of the external cause, Y92.831 — Amusement park as the place of occurrence of the external cause, Y92.832 — Beach as the place of occurrence of the external cause, Y92.833 — Campsite as the place of occurrence of the external cause, Y92.834 — Zoological garden (Zoo) as the place of occurrence of the external cause, Y92.838 — Other recreation area as the place of occurrence of the external cause, Y92.84 — Military training ground as the place of occurrence of the external cause, Y92.85 — Railroad track as the place of occurrence of the external cause, Y92.86 — Slaughter house as the place of occurrence of the external cause, Y92.89 — Other specified places as the place of occurrence of the external cause, +188 more

Contextual Map

Every relationship of Y92.828 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 Y92.828 with these 2 related codes in Claim Check

Hierarchy

Referenced by Use Additional Code instructions

  • V00 — Pedestrian conveyance accident[Use Additional Code](via Y92.-): “place of occurrence and activity external cause codes, if known (Y92.-, Y93.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
  • Y38 — Terrorism[Use Additional Code](via Y92.-): “code for place of occurrence (Y92.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

External cause index (15)

  • Place of occurrence, hill[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, lake, wilderness[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, marsh[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, mountain[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, pond[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, prairie[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, river[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Place of occurrence, stream[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • and 7 more

Nearest codes (40)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

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
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section 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
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

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Other wilderness area as the place of occurrence of the external cause

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to Y92.828 in its code family, with their registry titles.

View all codes in the Y92 family