X01 ICD-10-CM Codes: Exposure to uncontrolled fire, not in building or structure

Codes under X01 (Exposure to uncontrolled fire, not in building or structure). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
X01.0	Exposure to flames in uncontrolled fire, not in building or structure	—
X01.0	Exposure to flames in uncontrolled fire, not in building or structure	—
X01.0XXA	Exposure to flames in uncontrolled fire, not in building or structure, initial encounter	✓
X01.0XXA	Exposure to flames in uncontrolled fire, not in building or structure, initial encounter	✓
X01.0XXD	Exposure to flames in uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.0XXD	Exposure to flames in uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.0XXS	Exposure to flames in uncontrolled fire, not in building or structure, sequela	✓
X01.0XXS	Exposure to flames in uncontrolled fire, not in building or structure, sequela	✓
X01.1	Exposure to smoke in uncontrolled fire, not in building or structure	—
X01.1	Exposure to smoke in uncontrolled fire, not in building or structure	—
X01.1XXA	Exposure to smoke in uncontrolled fire, not in building or structure, initial encounter	✓
X01.1XXA	Exposure to smoke in uncontrolled fire, not in building or structure, initial encounter	✓
X01.1XXD	Exposure to smoke in uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.1XXD	Exposure to smoke in uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.1XXS	Exposure to smoke in uncontrolled fire, not in building or structure, sequela	✓
X01.1XXS	Exposure to smoke in uncontrolled fire, not in building or structure, sequela	✓
X01.3	Fall due to uncontrolled fire, not in building or structure	—
X01.3	Fall due to uncontrolled fire, not in building or structure	—
X01.3XXA	Fall due to uncontrolled fire, not in building or structure, initial encounter	✓
X01.3XXA	Fall due to uncontrolled fire, not in building or structure, initial encounter	✓
X01.3XXD	Fall due to uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.3XXD	Fall due to uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.3XXS	Fall due to uncontrolled fire, not in building or structure, sequela	✓
X01.3XXS	Fall due to uncontrolled fire, not in building or structure, sequela	✓
X01.4	Hit by object due to uncontrolled fire, not in building or structure	—
X01.4	Hit by object due to uncontrolled fire, not in building or structure	—
X01.4XXA	Hit by object due to uncontrolled fire, not in building or structure, initial encounter	✓
X01.4XXA	Hit by object due to uncontrolled fire, not in building or structure, initial encounter	✓
X01.4XXD	Hit by object due to uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.4XXD	Hit by object due to uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.4XXS	Hit by object due to uncontrolled fire, not in building or structure, sequela	✓
X01.4XXS	Hit by object due to uncontrolled fire, not in building or structure, sequela	✓
X01.8	Other exposure to uncontrolled fire, not in building or structure	—
X01.8	Other exposure to uncontrolled fire, not in building or structure	—
X01.8XXA	Other exposure to uncontrolled fire, not in building or structure, initial encounter	✓
X01.8XXA	Other exposure to uncontrolled fire, not in building or structure, initial encounter	✓
X01.8XXD	Other exposure to uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.8XXD	Other exposure to uncontrolled fire, not in building or structure, subsequent encounter	✓
X01.8XXS	Other exposure to uncontrolled fire, not in building or structure, sequela	✓
X01.8XXS	Other exposure to uncontrolled fire, not in building or structure, sequela	✓

Frequently asked questions

What is ICD-10-CM code X01?

X01 is an ICD-10-CM category covering Exposure to uncontrolled fire, not in building or structure. It contains 40 more specific diagnosis codes, 30 of which are billable.

Is X01 a billable code?

No — X01 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example X01.0 — Exposure to flames in uncontrolled fire, not in building or structure). 30 of the 40 codes under X01 are billable.

What codes fall under X01?

X01 includes X01.0, X01.0, X01.0XXA, X01.0XXA, X01.0XXD, plus 35 more. See the full list with descriptions and billable status above.

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

X01: Exposure to uncontrolled fire, not in building or structure

Frequently asked questions

What is ICD-10-CM code X01?

Is X01 a billable code?

What codes fall under X01?

Code the diagnosis right