W49: Exposure to other inanimate mechanical forces
Codes under W49 (Exposure to other inanimate mechanical forces). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| W49.0 | Item causing external constriction | — |
| W49.0 | Item causing external constriction | — |
| W49.01 | Hair causing external constriction | — |
| W49.01 | Hair causing external constriction | — |
| W49.01XA | Hair causing external constriction, initial encounter | ✓ |
| W49.01XA | Hair causing external constriction, initial encounter | ✓ |
| W49.01XD | Hair causing external constriction, subsequent encounter | ✓ |
| W49.01XD | Hair causing external constriction, subsequent encounter | ✓ |
| W49.01XS | Hair causing external constriction, sequela | ✓ |
| W49.01XS | Hair causing external constriction, sequela | ✓ |
| W49.02 | String or thread causing external constriction | — |
| W49.02 | String or thread causing external constriction | — |
| W49.02XA | String or thread causing external constriction, initial encounter | ✓ |
| W49.02XA | String or thread causing external constriction, initial encounter | ✓ |
| W49.02XD | String or thread causing external constriction, subsequent encounter | ✓ |
| W49.02XD | String or thread causing external constriction, subsequent encounter | ✓ |
| W49.02XS | String or thread causing external constriction, sequela | ✓ |
| W49.02XS | String or thread causing external constriction, sequela | ✓ |
| W49.03 | Rubber band causing external constriction | — |
| W49.03 | Rubber band causing external constriction | — |
| W49.03XA | Rubber band causing external constriction, initial encounter | ✓ |
| W49.03XA | Rubber band causing external constriction, initial encounter | ✓ |
| W49.03XD | Rubber band causing external constriction, subsequent encounter | ✓ |
| W49.03XD | Rubber band causing external constriction, subsequent encounter | ✓ |
| W49.03XS | Rubber band causing external constriction, sequela | ✓ |
| W49.03XS | Rubber band causing external constriction, sequela | ✓ |
| W49.04 | Ring or other jewelry causing external constriction | — |
| W49.04 | Ring or other jewelry causing external constriction | — |
| W49.04XA | Ring or other jewelry causing external constriction, initial encounter | ✓ |
| W49.04XA | Ring or other jewelry causing external constriction, initial encounter | ✓ |
| W49.04XD | Ring or other jewelry causing external constriction, subsequent encounter | ✓ |
| W49.04XD | Ring or other jewelry causing external constriction, subsequent encounter | ✓ |
| W49.04XS | Ring or other jewelry causing external constriction, sequela | ✓ |
| W49.04XS | Ring or other jewelry causing external constriction, sequela | ✓ |
| W49.09 | Other specified item causing external constriction | — |
| W49.09 | Other specified item causing external constriction | — |
| W49.9 | Exposure to other inanimate mechanical forces | — |
| W49.9 | Exposure to other inanimate mechanical forces | — |
| W49.09XA | Other specified item causing external constriction, initial encounter | ✓ |
| W49.09XA | Other specified item causing external constriction, initial encounter | ✓ |
| W49.09XD | Other specified item causing external constriction, subsequent encounter | ✓ |
| W49.09XD | Other specified item causing external constriction, subsequent encounter | ✓ |
| W49.09XS | Other specified item causing external constriction, sequela | ✓ |
| W49.09XS | Other specified item causing external constriction, sequela | ✓ |
| W49.9XXA | Exposure to other inanimate mechanical forces, initial encounter | ✓ |
| W49.9XXA | Exposure to other inanimate mechanical forces, initial encounter | ✓ |
| W49.9XXD | Exposure to other inanimate mechanical forces, subsequent encounter | ✓ |
| W49.9XXD | Exposure to other inanimate mechanical forces, subsequent encounter | ✓ |
| W49.9XXS | Exposure to other inanimate mechanical forces, sequela | ✓ |
| W49.9XXS | Exposure to other inanimate mechanical forces, sequela | ✓ |
Frequently asked questions
What is ICD-10-CM code W49?
W49 is an ICD-10-CM category covering Exposure to other inanimate mechanical forces. It contains 50 more specific diagnosis codes, 36 of which are billable.
Is W49 a billable code?
No — W49 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 W49.0 — Item causing external constriction). 36 of the 50 codes under W49 are billable.
What codes fall under W49?
W49 includes W49.0, W49.0, W49.01, W49.01, W49.01XA, plus 45 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.
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