ICD code S25.119D – Minor innominate or subclavian artery laceration, unspecified side, subsequent encounter

Key takeaways

S25.119D reports a minor laceration of the innominate or subclavian artery at a healing-phase visit when the record does not name the side.

A minor laceration means an incomplete transection or a superficial tear. A complete transection or traumatic rupture is a major laceration, coded in S25.12-.

Only the right side has an innominate artery, so a left-sided injury in this subcategory is a left subclavian injury, coded S25.112D.

The 7th character D reflects the phase of care, not the visit count. Use it for routine follow-up once active treatment has ended.

Intercostal vessel injuries sit in a different subcategory, S25.5-, and never belong on an S25.119D claim.

ICD-10 code S25.119D reports a minor artery laceration at follow-up

ICD-10 code S25.119D reports a minor laceration of the innominate or subclavian artery at a subsequent encounter, when the record doesn’t name the side. Its official descriptor reads Minor laceration of unspecified innominate or subclavian artery, subsequent encounter.

It’s a billable, specific code in Chapter 19, filed under block S20-S29 (Injuries to the thorax) and category S25 (Injury of blood vessels of thorax).

The CDC/NCHS ICD-10-CM web tool carries the official annual release, including validity dates and the full tabular list for S25.119D. Check the active fiscal year there before you submit, because descriptors and code status can change every October 1.

To compare neighboring injuries, our index of ICD-10-CM codes lists the other diagnosis code guides in one place.

The 7th character D tracks the phase of care, not the visit count

The 7th character D means the patient is receiving care during the healing or recovery phase of the injury. It does not mean this is literally their second visit, and that misreading drives denials across Chapter 19 injury codes.

Official Guidelines Section I.C.19.a defines the three 7th character options for S25.119 like this.

A patient can be seen several times during active treatment, and each of those encounters carries A as its 7th character. The switch to D happens when active treatment ends and the visit becomes routine follow-up care. Switching to D on the second visit, regardless of clinical status, produces claims that payers reject or audit.

For the source text, the CMS ICD-10 codes page links to the Official Guidelines PDF, the authoritative reference for 7th character use.

Two arteries fall under S25.119D, and anatomy can settle the side

S25.119D covers the innominate artery, also called the brachiocephalic trunk, and the subclavian arteries. The innominate artery is the first branch of the aortic arch. Behind the right sternoclavicular joint, it divides into the right subclavian and right common carotid arteries.

The left subclavian artery has no innominate artery above it, because it arises directly from the aortic arch. Each subclavian artery becomes the axillary artery at the outer border of the first rib. Past that point, the injury moves to a different code family.

• Minor laceration: ICD-10-CM groups an incomplete transection, a superficial laceration, and a laceration not otherwise specified under S25.11-. A complete transection or traumatic rupture is a major laceration, coded S25.12-.
• Unspecified side: The record names a minor laceration of one of these arteries but not the side. A right-sided note supports S25.111D, and a left-sided note supports S25.112D.
• Typical mechanisms: Penetrating trauma below the clavicle, high-energy blunt chest trauma, and fractures of the clavicle or first rib.
• Common companion diagnoses: Traumatic hemothorax (S27.1-), an open wound of the thorax (S21.-), and a clavicle fracture (S42.0-) often appear on the same claim.

Anatomy can settle a vague note. Only the right side has an innominate artery, so a note naming the innominate or brachiocephalic artery points to a right-sided injury. Confirm the side with the provider and code S25.111D rather than leaving the side unspecified.

Side, injury type and phase separate S25.119D from its siblings

The S25.1 subcategory splits innominate and subclavian artery injuries by vessel, injury type, side and encounter. Picking from the wrong branch is a common source of rejected claims, so it pays to work through the four questions below in order.

Once you know which detail is missing or different, the table shows the codes coders most often weigh against S25.119D.

The AAPC Codify ICD-10-CM lookup lets coders view the full S25 family side by side. That helps confirm the subcode before submission when the provider note is ambiguous.

Tabular notes decide what can share the claim with S25.119D

The tabular notes that apply to S25.119D sit at the block, category and subcategory levels. Read all three before assigning the code.

• Inclusion terms (S25.11): Incomplete transection, laceration not otherwise specified, and superficial laceration of the innominate or subclavian artery.
• Code also (S25): Any associated open wound (S21.-).
• Block includes (S20-S29): Injuries of the breast, chest wall and interscapular area.
• Block Excludes2 (S20-S29): Burns and corrosions (T20-T32), frostbite (T33-T34), and venomous insect bite or sting (T63.4).
• More Excludes2 (S20-S29): Effects of a foreign body in the bronchus (T17.5), esophagus (T18.1), lung (T17.8) or trachea (T17.4).
• Shoulder-area Excludes2 (S20-S29): Injuries of the axilla, clavicle, scapular region and shoulder.

An Excludes2 note means the condition is not part of S25.119D, but both codes can be reported when both are present. A clavicle fracture and a subclavian artery laceration can therefore share a claim.

Not this code: These neighboring injuries have their own codes and never belong under S25.119D.

• Intercostal blood vessels: S25.5-
• Innominate or subclavian vein: S25.3-
• Thoracic aorta: S25.0-
• Axillary artery, beyond the outer border of the first rib: S45.0-
• Carotid artery: S15.0-
• Heart: S26.-
• Non-traumatic arterial disease of the thorax: Chapter 9 (I00-I99)

When a traumatic hemothorax is still being followed, report S27.1XXD as an additional code. Sequence by the reason for the encounter, per Official Guidelines Section II (inpatient) or Section IV (outpatient).

Five documentation elements support an S25.119D claim

The note must support five elements before S25.119D can be assigned. Missing any one of them leaves the claim open to a records request or an audit finding.

• Mechanism of injury: The note must establish a traumatic cause. A vessel finding on imaging without a documented injury does not support a Chapter 19 code.
• Vessel: The note must name the innominate (brachiocephalic) or subclavian artery. A note that says only “chest vessel injury” supports S25.90XD, not S25.119D.
• Injury type: The note must describe a laceration that is incomplete, superficial or not otherwise specified. A complete transection or traumatic rupture needs S25.129D instead.
• Encounter phase: The note must show healing-phase care, such as wound review, follow-up imaging of the repaired artery, or a recovery check. New active treatment at the same visit calls for 7th character A.
• Provider attestation: A query-driven addendum that adds the side or injury type is acceptable when the provider reviews and signs it. Unsigned addenda do not support code specificity.

A structured superbill documentation workflow helps practices capture these elements at the point of care, instead of chasing addenda later. Official Guidelines Section I.C.19 and Section IV then govern how the diagnosis is sequenced on professional claims.

For electronic claims, a clean claim submission process that checks the 7th character against the documented encounter type catches the most avoidable error before transmission.

A follow-up visit coded with S25.119D, step by step

Here’s how one follow-up claim moves from the note to the remittance. Picture a patient seen six weeks after repair of a minor subclavian artery laceration from a knife assault. The surgical global period has ended, and the visit is a routine recovery check.

1. Read the note. It names the subclavian artery and an incomplete transection repaired during the first admission, but no side. Before coding, send the provider a laterality query.
2. Assign the diagnoses. If the side stays undocumented, S25.119D goes first. Where the payer or state wants external causes, add X99.1XXD for assault by knife, and leave Y92 and Y93 off.
3. Pick the service code. An established-patient office visit from 99212-99215 fits, chosen by medical decision making or total time. Inside a global period, the surgeon would report 99024 instead.
4. Build the claim. On the CMS-1500, the diagnoses go in item 21. The diagnosis pointer in item 24E ties S25.119D to the visit line.
5. Scrub and send. The clearinghouse checks the format and required fields before the payer sees the claim. A rejection at this stage comes back quickly and costs little to fix.
6. Post the remittance. The electronic remittance advice confirms payment or lists a reason code. A denial for the 7th character or the side sends you back to step one.

Most of the work happens in the first two steps. Once the note and the codes agree, the rest of the claim tends to move without friction.

Payer rules for S25.119D usually target the procedure

The follow-up visit itself rarely needs prior authorization, but the procedure billed with S25.119D may. Follow-up CT angiography and other advanced imaging often carry payer authorization rules that apply independently of the diagnosis code.

Medicare and commercial payers accept S25.119D as a principal or additional diagnosis when the documentation supports it. Complication or comorbidity (CC/MCC) status can change with each fiscal year’s MS-DRG definitions. Check the CMS MS-DRG Definitions Manual for the discharge year before quoting any DRG impact.

Coverage problems are cheaper to catch before the visit than at adjudication. A real-time eligibility check confirms the plan is active on the date of service, which removes one avoidable reason for a denied follow-up claim.

NCCI (National Correct Coding Initiative) edits apply to procedure code pairs, not to diagnosis codes. Any bundling conflict on an S25.119D claim comes from the CPT codes billed alongside it. Solid medical billing compliance means checking the current NCCI tables for every CPT pair during pre-submission scrubbing.

Seven denial triggers on S25.119D claims, and the fix for each

A 7th character that doesn’t match the phase of care is a frequent error on injury codes like S25.119D. The other triggers are just as predictable, and each one has a pre-submission check.

A structured denial management workflow tracks CARC reason codes by ICD-10 code. It shows whether S25.119D denials cluster around the 7th character, the side, or the vessel, so staff training can target the right error.

External cause codes take the same 7th character as S25.119D

Chapter 20 external cause codes (V00-Y99) describe how the injury happened. Official Guidelines Section I.C.20 sets no national requirement to report them. Report them when a state mandate or the payer requires it, and many practices report them anyway.

The external cause code takes the same 7th character as the injury code, so D on a subsequent encounter. Common mechanisms for this injury include transport accidents (V00-V99), falls (W00-W19), and assault by a sharp object (X99).

Place of occurrence (Y92), activity (Y93) and external cause status (Y99) codes are reported only once, at the initial encounter. Leave them off an S25.119D claim. If your team is newer to injury claims, our overview of medical billing basics shows how diagnosis and service codes work together.

CPT codes follow the service at an S25.119D visit

S25.119D is a diagnosis code, so every claim also needs a CPT code for the service performed. At a subsequent encounter, those services are usually follow-up visits and imaging of the repaired or healing artery.

The CPT code always follows the documented service, and each one needs its own supporting documentation. None of these pairings is automatic.

Practices billing thoracic trauma across several payers benefit from claims management software that keeps codes, claims and remittances in one place. Reviewing electronic remittance advice (ERA) data by CPT and ICD-10 pair shows which combinations generate denials.

Run this checklist before you submit an S25.119D claim

Every row in the denial table above maps to a check you can run before the claim leaves the practice. Work down this list in order.

• The note names the innominate or subclavian artery, not just a chest vessel.
• The injury reads as minor: an incomplete transection, a superficial laceration, or a laceration not otherwise specified.
• The side is undocumented, and a laterality query has been sent or answered.
• Active treatment has ended, so the 7th character D matches the visit.
• Any external cause code carries D, and no Y92, Y93 or Y99 code rides along.
• Any query-driven addendum carries the provider’s signature.
• The CPT code matches the documented service, and the surgical global period has been checked.
• S25.119D is valid for the fiscal year of the date of service.

How Pabau keeps S25.119D claims tied to the patient record

S25.119D errors usually start at the point of coding, with the wrong side, vessel or encounter phase. When staff retype the diagnosis from the note into a separate billing tool, those slips travel straight to the payer.

Pabau, the practice management platform we build, pre-fills the CMS-1500 from the patient record. Coders search the full ICD-10-CM library inside the claim, so S25.111D, S25.112D and S25.119D sit side by side before one is chosen.

Required claim fields are checked before the claim can be sent. For US practices, the Claim.MD integration adds real-time eligibility checks, claim status tracking and ERA posting, so a rejected follow-up claim surfaces quickly.

Streamline your ICD-10 claims workflow

Pabau pre-fills claims from the patient record and sends them through Claim.MD with eligibility checks and ERA posting, so follow-up injury claims go out complete.

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Conclusion

S25.119D is a narrow code, and that narrowness is useful. It fits only when four facts line up. The laceration is minor, the vessel is the innominate or subclavian artery, the visit is healing-phase care, and the note names no side.

Of those four facts, the side is the one worth chasing. A quick laterality query before submission turns many of these claims into S25.111D or S25.112D, and payers have one less reason to request records. Keep S25.119D for the visits where nobody can confirm the side.

If your practice bills follow-up care for thoracic trauma, book a demo to see how Pabau keeps injury claims complete from record to remittance.

Continue your research

Need to understand denial reason codes on rejected claims? Denial codes in medical billing explains CARC and RARC codes and how to action each denial type.

Want to verify eligibility before the encounter? Insurance eligibility verification covers how to confirm patient coverage before a subsequent-encounter visit.

Looking for an overview of the clearinghouse submission process? Medical claims clearinghouse guide explains how 837P files move from practice to payer and where errors get caught.

Filling in claims by hand? CMS-1500 form template gives you the professional claim form that carries S25.119D in item 21.

Need a claim form patients can complete? Medical insurance claim form template is a downloadable form for collecting claim details.

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