V01 vs X01.4

V01 (Pedestrian injured in collision with pedal cycle) compared with X01.4 (Hit by object due to uncontrolled fire, not in building or structure), from the official CMS tabular data.

Summary

These codes can be reported together when both conditions are documented, because X01.4 lists V01 under Excludes2, which marks them as distinct conditions.

Official rule

What is different?

The conditions named.V01 is “Pedestrian injured in collision with pedal cycle”; X01.4 is “Hit by object due to uncontrolled fire, not in building or structure”.

Registry fact

Can these codes be reported together?

Yes, when both are documented.X01.4 lists V01 under Excludes2: “transport accident (V01-V99)”. Excludes2 marks distinct conditions that may both be reported when both are documented.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. V01 carries 3 Excludes1 notes and X01.4 carries 1 Excludes1 note covering other codes; the side-by-side table quotes them.

Official rule

Is there an Excludes2 relationship?

Yes.X01.4’s tabular entry: “transport accident (V01-V99)”. The note covers V01.

Official ruleGuide: Excludes1 vs Excludes2

Is one more specific?

Not comparable.The codes sit in different categories; specificity is only comparable within one category.

Is one a parent or header code?

Both are headers.Both are non-billable headers, and neither contains the other.

Registry fact

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Informational

Excludes2 relationship

X01.4

Hit by object due to uncontrolled fire, not in building or structure

↔

V01

Pedestrian injured in collision with pedal cycle

What we found

Yes, when both are documented.X01.4 carries an Excludes2 note covering V01: “transport accident (V01-V99)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2 Check these on a claim

Why it matters

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source / rule

CMS ICD-10-CM tabular instructional notes

Official guidance behind these answers

Section I.A.12.b — Excludes2 · applies to: Excludes2
A type 2 Excludes note represents “Not included here.” An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
ICD-10-CM Official Guidelines FY2026

Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum

Side by side

	V01Pedestrian injured in collision with pedal cycle	X01.4Hit by object due to uncontrolled fire, not in building or structure
Billing status	Non-billable header Report instead: V01.00XA, V01.00XD, V01.00XS, V01.01XA, V01.01XD	Non-billable header Report instead: X01.4XXA, X01.4XXD, X01.4XXS
Classification	V00-Y99 — External Causes of Morbidity (V00-Y99)	V00-Y99 — External Causes of Morbidity (V00-Y99)
Definition	Pedestrian injured in collision with pedal cycle is a non-billable ICD-10-CM category code (V01).	Hit by object due to uncontrolled fire, not in building or structure is a non-billable ICD-10-CM category code (X01.4).
7th character	The appropriate 7th character is to be added to each code from category V01	The appropriate 7th character is to be added to each code from category X01
Includes	person changing tire on transport vehicle person examining engine of vehicle broken down in (on side of) road	exposure to forest fire
Excludes1	fall due to non-transport collision with other person (W03) pedestrian on foot falling (slipping) on ice and snow (W00.-) struck or bumped by another person (W51)	arson (X97)
Excludes2	—	explosions (W35-W40) lightning (T75.0-) transport accident (V01-V99)

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

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Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources