2027 ICD-10-CM Diagnosis Code S45.302DUnspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter

ICD-10-CM Codes›S00–T88›S40-S49›S45

ICD-10-CM S45.302D
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

S45.302D is a billable ICD-10-CM diagnosis code for unspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury to blood vessels, subsequent encounter.

Code Identity

ICD-10-CM Code
S45.302D
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter
Short Description
Unsp injury of superfic vn at shldr/up arm, left arm, subs
Parent Code
S45.302
Unspecified injury of superficial vein at shoulder and upper arm level, left arm

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS40-S49Injuries to the shoulder and upper arm
CategoryS45Injury of blood vessels at shoulder and upper arm level
This CodeS45.302DUnspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter

Present on Admission (POA)Billing

S45.302D is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Injuries to the shoulder and upper arm (S40-S49).

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Injury of blood vessels at shoulder and upper arm level (S45). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S45.302D: its own notes plus those printed at S45, block S40-S49, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block S40-S49 Injuries to the shoulder and upper arm applies to 2,730 codes
  • injuries of axilla
  • injuries of scapular region

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From S45 Injury of blood vessels at shoulder and upper arm level applies to 162 codes
  • injury of subclavian artery (S25.1)
  • injury of subclavian vein (S25.3)
From Block S40-S49 Injuries to the shoulder and upper arm applies to 2,730 codes
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From S45 Injury of blood vessels at shoulder and upper arm level applies to 162 codes
  • any associated open wound (S41.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

From S45 Injury of blood vessels at shoulder and upper arm level applies to 162 codes
  • The appropriate 7th character is to be added to each code from category S45
Values for category S45 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter this code
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ053
Injury to blood vessels, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Arm Injuries and Disorders

Of the 206 bones in your body, three of them are in your arm: the humerus, radius, and ulna. Your arms are also made up of muscles, joints, tendons, and other connective tissue. Injuries to any of these parts of the arm can occur during sports, a fall, or an accident.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S45.302D to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V58.89 Other specfied aftercare
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S45.302DOverview

Is S45.302D a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What does the 7th character D in S45.302D mean?

The final character D marks a subsequent encounter: use it for routine care while the unspecified injury of superficial vein at shoulder and upper arm level, left arm is healing, after active treatment has ended.

What MS-DRG does S45.302D group to?

When unspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 950, 949, with relative weights from 0.7661 to 1.1231 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S45.302D exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for unspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter on inpatient claims. The code appears in the Injuries to the shoulder and upper arm (S40-S49) range of the CMS exempt list.

What is the ICD-9 equivalent of S45.302D?

Under the General Equivalence Mappings, unspecified injury of superficial vein at shoulder and upper arm level, left arm, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). The mapping is approximate, so confirm the match fits the documentation.