T17.818A — Gastric contents in other parts of respiratory tract causing other injury, initial encounter
Is T17.818A billable?
Yes — T17.818A is billable for FY2027. T17.818A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. T17.818A may be submitted for encounters from October 1, 2026 through September 30, 2027.
T17.818A at a glance
| Code | T17.818A |
|---|---|
| Description | Gastric contents in other parts of respiratory tract causing other injury, 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 T17.818A?
In T17.818A, the 7th character A means initial encounter. The 7th character is required for T17.818A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T17.818A group to?
T17.818A sits in MDC 04 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 205Other Respiratory System Diagnoses with MCCmedical
- 206Other Respiratory System Diagnoses without MCCmedical
As a secondary diagnosis, T17.818A is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is T17.818A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T17.818, the nearest indexed parent of T17.818A. Use them to find the family, then select the specific code.
- Foreign body › respiratory tract › specified site NEC › causing › injury NEC › gastric contents
How is T17.818A listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under T17.81, the nearest indexed parent of T17.818A. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Vomitus, gastric contents in air passages (with asphyxia, obstruction or suffocation)
- Choked, choking › vomitus (on) (any object except food or vomitus)
- Inhalation › gastric contents
- Inhalation › vomitus
- Interruption of respiration › vomitus (by)
- Compression › trachea by › vomitus
- Suffocation › due to, by › vomitus (accidental) (by external means) (by pressure) (mechanical)
Use additional code — inherited from Chapter 19
Report an additional code alongside T17.818A to fully describe the condition. T17.818A is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T15-T19
Report an additional code alongside T17.818A to fully describe the condition. T17.818A is sequenced first.
- code, if known, for foreign body entering into or through a natural orifice (W44.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T17.818A, but a patient may have both at the same time. When documentation supports it, T17.818A and the excluded code may both be reported.
Excludes2 — not included here — inherited from T15-T19
The conditions below are not part of T17.818A, but a patient may have both at the same time. When documentation supports it, T17.818A and the excluded code may both be reported.
How long has T17.818A existed?
T17.818A 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.