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V29.818 ICD-10-CM Code: Rider (driver) (passenger) of other motorcycle injured in transport accident with military vehicle

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
7 inclusion terms · 1 Excludes1

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for V29.818 in the official ICD-10-CM tabular list, quoted as published.

Notes without a marker are published on V29.818 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • electric bicycle
  • e-bike
  • e-bicycle
  • moped
  • motorcycle with sidecar
  • motorized bicycle
  • motor scooter

Source: inherited from V20-V29

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Source: inherited from V20-V29

7th Character Guide

"The appropriate 7th character is to be added to each code from category V29"

  • 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

V29.818A, V29.818D, V29.818S

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 V29.818

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

Before you code V29.818

  1. V29.818 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).

    ReviewV29.818A, V29.818D, V29.818S

    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. V29.818 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. V29.818’s title joins a condition with an associated condition or complication. Confirm each component is documented. Where the classification presumes the link through the “with” convention, only a provider statement that the conditions are unrelated defeats it. A combination code is assigned only when it fully identifies the documented conditions; a required second code for the stage, type or manifestation is still reported when the notes ask for it (Guidelines I.B.9, I.A.15).

    Guide: Combination codes →

  4. 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).

  5. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with V29.818. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support one of the more specific codes beneath V29.818?
    Yes → Select that code and continue the checks below on its own page.
    No → V29.818 cannot be reported as written; query for the specificity its subcategory needs.

    ReviewV29.818A, V29.818D, V29.818S

  2. Does the documentation support a condition named in V29.818’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.
  3. 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 V29.818. 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).
The associated condition or complication
Whether the associated condition the title names is documented; the “with” convention presumes some links, and a provider statement that the conditions are unrelated defeats it (Guidelines I.A.15).

Official instructions as workflow

  • Excludes1 — check before selecting V29.818(1 note)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with V29.818: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

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

Coding decision scenarios

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

Documentation: Both the condition V29.818 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

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).

Documentation: Only one of the components this code’s title joins is documented.

Coding question: Is V29.818 supported?

Path: Review the code for the documented component on its own.

Reason: A combination code is assigned only when it fully identifies the documented conditions; otherwise the documented component takes its own code (Guidelines I.B.9).

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

Rider (driver) (passenger) of other motorcycle injured in transport accident with military vehicle is a non-billable ICD-10-CM category code (V29.818). 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 (1)

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.

  • Accident (to), transport (involving injury to), motorcycle, specified type NEC, military vehicle

Verify Before Coding

  • Not billable as written — a more specific code is required: V29.818A, V29.818D, V29.818S.
  • Requires a 7th character. "The appropriate 7th character is to be added to each code from category V29" Options: V29.818A, V29.818D, V29.818S
  • 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 V29.818 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 15 Excludes1 notes: V00.14 — Scooter (nonmotorized) accident (via V29.-), V24 — Motorcycle rider injured in collision with heavy transport vehicle or bus, V30 — Occupant of three-wheeled motor vehicle injured in collision with pedestrian or animal (via V29.-), V30-V39 — Occupant of three-wheeled motor vehicle injured in transport accident (V30-V39) (via V29.-), V31 — Occupant of three-wheeled motor vehicle injured in collision with pedal cycle (via V29.-), V32 — Occupant of three-wheeled motor vehicle injured in collision with two- or three-wheeled motor vehicle (via V29.-), V33 — Occupant of three-wheeled motor vehicle injured in collision with car, pick-up truck or van (via V29.-), V34 — Occupant of three-wheeled motor vehicle injured in collision with heavy transport vehicle or bus (via V29.-), V35 — Occupant of three-wheeled motor vehicle injured in collision with railway train or railway vehicle (via V29.-), V36 — Occupant of three-wheeled motor vehicle injured in collision with other nonmotor vehicle (via V29.-), V37 — Occupant of three-wheeled motor vehicle injured in collision with fixed or stationary object (via V29.-), V38 — Occupant of three-wheeled motor vehicle injured in noncollision transport accident (via V29.-), V39 — Occupant of three-wheeled motor vehicle injured in other and unspecified transport accidents (via V29.-), Y36 — Operations of war, Y37 — Military operations.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Contextual Map

Every relationship of V29.818 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 V29.818 with these 8 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes (15)

External cause index

  • Accident (to), transport (involving injury to), motorcycle, specified type NEC, military vehicle[External cause term]— CMS External Cause of Injuries Index · icd10cm-fy2026

Nearest codes (40)

Change history

Common coding questions

Can V29.818 be billed directly?

No. V29.818 (Rider (driver) (passenger) of other motorcycle injured in transport accident with military vehicle) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does V29.818 require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category V29.

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

  • FY2023 — October 1, 2022
    Added to the code set
    Rider (driver) (passenger) of other motorcycle injured in transport accident with military vehicle
    FY2023 changes

Nearest Codes in This Family

Official ICD-10-CM classifications closest to V29.818 in its code family, with their registry titles.

View all codes in the V29 family