S36.420D — Contusion of duodenum, subsequent encounter
Is S36.420D billable?
Yes — S36.420D is billable for FY2027. S36.420D is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S36.420D may be submitted for encounters from October 1, 2026 through September 30, 2027.
S36.420D at a glance
| Code | S36.420D |
|---|---|
| Description | Contusion of duodenum, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in S36.420D?
In S36.420D, the 7th character D means subsequent encounter. The 7th character is required for S36.420D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S36.420D group to?
S36.420D sits in MDC 23 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.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
How is S36.420D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S36.420, the nearest indexed parent of S36.420D. Use them to find the family, then select the specific code.
- Contusion › duodenum (skin surface intact)
- Injury › intestine › small › contusion › duodenum
- Injury › intestine › small › duodenum › contusion
Use additional code — inherited from Chapter 19
Report an additional code alongside S36.420D to fully describe the condition. S36.420D is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S36.420D, but a patient may have both at the same time. When documentation supports it, S36.420D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S30-S39
The conditions below are not part of S36.420D, but a patient may have both at the same time. When documentation supports it, S36.420D and the excluded code may both be reported.
Code also — inherited from S36
Two codes may be needed to describe the condition fully. Whether S36.420D is sequenced first depends on the reason for the encounter.
- any associated open wound (S31.-)
How long has S36.420D existed?
S36.420D 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.