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X37.0 ICD-10-CM Code: Hurricane

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Coding at a Glance

7th character
Required — see the character table on this page
Tabular directives
2 inclusion terms

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for X37.0 in the official ICD-10-CM tabular list, quoted as published.

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

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Storm surge
  • Typhoon

7th Character Guide

"The appropriate 7th character is to be added to each code from category X37"

  • A — initial encounter
  • D — subsequent encounter
  • S — sequela

How the encounter character is assigned. “Initial encounter” means the patient is receiving active treatment for the condition — it is not limited to the first visit, and a different or new provider giving active treatment still assigns it. “Subsequent encounter” covers care during the healing or recovery phase after active treatment. “Sequela” is for complications or conditions that arise as a direct result of the original condition.

ICD-10-CM Official Guidelines for Coding and Reporting, Section I.C.19.a (paraphrased by MedCoder).

Variant codes in this family

X37.0XXA, X37.0XXD, X37.0XXS

Character meanings are CMS's official 7th-character extensions for this family, as carried in each variant code's official description; variant codes are registry rows. The explanation of how the encounter character is assigned is MedCoder editorial, distinct from the official content above it.

Coder workflow for X37.0

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

Before you code X37.0

  1. X37.0 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewX37.0XXA, X37.0XXD, X37.0XXS

    See the relationships section · Guide: How to choose an ICD-10-CM code →

  2. A 7th character is required in this family. Confirm the documented encounter: initial (active treatment), subsequent (healing or recovery phase), or sequela. X37.0 is not valid without one. “Initial” means active treatment, not the first visit (Guidelines I.C.19.a).

    See the 7th Character Guide · Guide: 7th characters: initial, subsequent, sequela →

  3. 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).

Choose the right path

  1. Does the documentation support one of the more specific codes beneath X37.0?
    Yes → Select that code and continue the checks below on its own page.
    No → X37.0 cannot be reported as written; query for the specificity its subcategory needs.

    ReviewX37.0XXA, X37.0XXD, X37.0XXS

  2. Is the encounter phase documented — active treatment, healing or recovery, or a sequela?
    Yes → Assign the matching 7th character; the variant codes are in the 7th Character Guide.
    No → The code is invalid without its 7th character — query for the missing element.

Consider X37.0. Then confirm the code is valid for the date of service in the Verify section.

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).
Encounter type
Active treatment, healing or recovery phase, or sequela — the basis of the 7th character (Guidelines I.C.19.a).

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: The patient returns during the healing or recovery phase after active treatment of the same condition.

Coding question: Which 7th character applies?

Path: Review the official 7th-character definitions for this family in the 7th Character Guide.

Reason: “Initial encounter” means active treatment, not the first visit; care during recovery takes “subsequent encounter”, and a complication arising from the original condition takes “sequela” (Guidelines I.C.19.a).

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

Hurricane is a non-billable ICD-10-CM category code (X37.0). A more specific billable subcode must be selected for claims submission.

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 (8)

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.

  • Drowning (accidental), due to, hurricane
  • Forces of nature, cataclysmic storm, hurricane
  • Forces of nature, cataclysmic storm, storm surge
  • Forces of nature, cataclysmic storm, typhoon
  • Forces of nature, hurricane
  • Forces of nature, storm surge
  • Forces of nature, typhoon
  • Hurricane (any injury)

Verify Before Coding

  • Not billable as written — a more specific code is required: X37.0XXA, X37.0XXD, X37.0XXS.
  • Requires a 7th character. "The appropriate 7th character is to be added to each code from category X37" Options: X37.0XXA, X37.0XXD, X37.0XXS
  • 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 X37.0 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 7 Excludes2 notes: V00-V99 — Transport accidents (V00-V99) (via X37.-), W65 — Accidental drowning and submersion while in bath-tub (via X37.-), W65-W74 — Accidental non-transport drowning and submersion (W65-W74) (via X37.-), W67 — Accidental drowning and submersion while in swimming-pool (via X37.-), W69 — Accidental drowning and submersion while in natural water (via X37.-), W73 — Other specified cause of accidental non-transport drowning and submersion (via X37.-), W74 — Unspecified cause of accidental drowning and submersion (via X37.-).

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

Referenced by 2 Code First instructions: V92.2 — Drowning and submersion due to being washed overboard from watercraft, W20 — Struck by thrown, projected or falling object (via X37.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

Referenced by 1 Use Additional Code instruction: T71.21 — Asphyxiation due to cave-in or falling earth (via X37.-).

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

Contextual Map

Every relationship of X37.0 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 X37.0 with these 10 related codes in Claim Check

Hierarchy

Referenced by Excludes2 notes

Referenced by Code First instructions

Referenced by Use Additional Code instructions

External cause index

  • Drowning (accidental), due to, hurricane[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Forces of nature, cataclysmic storm, hurricane[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Forces of nature, cataclysmic storm, storm surge[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Forces of nature, cataclysmic storm, typhoon[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Forces of nature, hurricane[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Forces of nature, storm surge[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Forces of nature, typhoon[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026
  • Hurricane (any injury)[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026

Nearest codes (37)

Change history

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

Common coding questions

Can X37.0 be billed directly?

No. X37.0 (Hurricane) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does X37.0 require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category X37.

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
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
    Hurricane

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 X37.0 in its code family, with their registry titles.

View all codes in the X37 family