Y21.2XXA — Drowning and submersion while in swimming pool, undetermined intent, initial encounter
Is Y21.2XXA billable?
Yes — Y21.2XXA is billable for FY2027. Y21.2XXA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Y21.2XXA may be submitted for encounters from October 1, 2026 through September 30, 2027.
Y21.2XXA at a glance
| Code | Y21.2XXA |
|---|---|
| Description | Drowning and submersion while in swimming pool, undetermined intent, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in Y21.2XXA?
In Y21.2XXA, the 7th character A means initial encounter. The 7th character is required for Y21.2XXA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is Y21.2XXA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under Y21.2, the nearest indexed parent of Y21.2XXA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Undetermined intent › drowning › swimming pool (contact) (exposure)
- Drowning › in › swimming-pool › stated as undetermined whether accidental or intentional (accidental)
How long has Y21.2XXA existed?
Y21.2XXA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.