W73A is the authoritative medical code for Other specified cause of accidental non-transport drowning and submersion, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for other specified cause of accidental non-transport drowning and submersion, initial encounter (ICD-10-CM W73A), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other specified cause of accidental non-transport drowning and submersion, initial encounter is a billable ICD-10-CM diagnosis code W73A. Inclusion terms: Accidental drowning and submersion while in quenching tank; Accidental drowning and submersion while in reservoir. Excludes1 (not coded here): accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331); accidental drowning and submersion due to fall into water W16.-; accidental drowning and submersion due to water transport accident (V90.-, V92.-). Excludes2 (not included here): accidental drowning and submersion due to cataclysm X34-X39. 7th character: The appropriate 7th character is to be added to code W73.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W73A in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Accidental drowning and submersion while in quenching tank
- Accidental drowning and submersion while in reservoir
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331)
- accidental drowning and submersion due to fall into water W16.-
- accidental drowning and submersion due to water transport accident (V90.-, V92.-)
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- accidental drowning and submersion due to cataclysm X34-X39
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W73A require a 7th character?
Yes. The appropriate 7th character is to be added to code W73.
What can't be coded together with W73A?
Per Excludes1 instructions, W73A must not be reported with: accidental drowning and submersion due to fall into other water (W16.311, W16.321, W16.331); accidental drowning and submersion due to fall into water (W16.-); accidental drowning and submersion due to water transport accident (V90.-, V92.-).
Can W73A be reported alongside related conditions?
Per Excludes2 instructions, W73A and the following may both be reported when both are present: accidental drowning and submersion due to cataclysm (X34-X39).
What conditions are included under W73A?
Other specified cause of accidental non-transport drowning and submersion, initial encounter includes: Accidental drowning and submersion while in quenching tank; Accidental drowning and submersion while in reservoir.
Codes in This Family (6)
Official ICD-10-CM classifications in the same code family as W73A, with their registry titles.
- W73 — Other specified cause of accidental non-transport drowning and submersion
- W73.XXXA — Other specified cause of accidental non-transport drowning and submersion, initial encounter
- W73.XXXD — Other specified cause of accidental non-transport drowning and submersion, subsequent encounter
- W73.XXXS — Other specified cause of accidental non-transport drowning and submersion, sequela
- W73D — Other specified cause of accidental non-transport drowning and submersion, subsequent encounter
- W73S — Other specified cause of accidental non-transport drowning and submersion, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code W69A
Accidental drowning and submersion while in natural water, initial encounter
ICD Code W74A
Unspecified cause of accidental drowning and submersion, initial encounter