S45.991D — Other specified injury of unspecified blood vessel at shoulder and upper arm level, right arm, subsequent encounter
Is S45.991D billable?
Yes, but S45.991D is an unspecified code. S45.991D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, S45.991D is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting S45.991D — the more specific alternatives are listed below.
More specific alternatives
- S45.001DUnspecified injury of axillary artery, right side, subsequent encounter
- S45.101DUnspecified injury of brachial artery, right side, subsequent encounter
- S45.201DUnspecified injury of axillary or brachial vein, right side, subsequent encounter
- S45.301DUnspecified injury of superficial vein at shoulder and upper arm level, right arm, subsequent encounter
S45.991D at a glance
| Code | S45.991D |
|---|---|
| Description | Other specified injury of unspecified blood vessel at shoulder and upper arm level, right arm, 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 S45.991D?
In S45.991D, the 7th character D means subsequent encounter. The 7th character is required for S45.991D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S45.991D group to?
S45.991D 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 S45.991D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S45.99, the nearest indexed parent of S45.991D. Use them to find the family, then select the specific code.
- Injury › blood vessel NEC › armNEC › specified › type NEC
Use additional code — inherited from Chapter 19
Report an additional code alongside S45.991D to fully describe the condition. S45.991D 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 S45.991D, but a patient may have both at the same time. When documentation supports it, S45.991D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S40-S49
The conditions below are not part of S45.991D, but a patient may have both at the same time. When documentation supports it, S45.991D and the excluded code may both be reported.
Excludes2 — not included here — inherited from S45
The conditions below are not part of S45.991D, but a patient may have both at the same time. When documentation supports it, S45.991D and the excluded code may both be reported.
Code also — inherited from S45
Two codes may be needed to describe the condition fully. Whether S45.991D is sequenced first depends on the reason for the encounter.
- any associated open wound (S41.-)
How long has S45.991D existed?
S45.991D 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.