ICD code S95.001D – Dorsal artery of right foot injury

Key takeaways

S95.001D is a valid, billable ICD-10-CM code for subsequent encounters after a right-foot dorsal artery injury whose type is not further specified.

The 7th character D means active treatment is complete and the patient is in the healing phase. Using D while active surgical care is ongoing is a common denial trigger.

Laterality and injury type must both appear in the clinical note. If either is ambiguous, payers may downcode or deny the claim.

Pabau’s claims management software checks patient eligibility in real time and flags missing payer details before an S95.001D claim is sent.

ICD-10 Code S95.001D: Quick reference

ICD-10 Code S95.001D is the billable code for an unspecified injury of the dorsal artery of the right foot at a subsequent encounter.

Use it once active treatment is complete and the patient returns for routine healing-phase care.

The table below summarizes the code’s key attributes for FY 2027. Codes are updated each October 1, so confirm validity against the CDC/NCHS ICD-10-CM web tool before submitting claims.

What S95.001D describes: Anatomy and clinical meaning

The dorsal artery of the foot, also called the dorsalis pedis artery, runs along the top of the foot. It supplies blood to the dorsum of the foot and the toes. An injury to this vessel can reduce blood flow to the forefoot, and a severe one can threaten tissue viability.

The “unspecified” in S95.001D applies when the clinical documentation does not characterize the injury type further. It is the correct code when the provider has not documented whether the vascular injury is a laceration or another specified type.

• Included presentations: blunt trauma to the dorsal artery without a defined injury type, or a vascular injury recorded as “unspecified” after imaging. Follow-up care for a previously documented but uncharacterized dorsal artery injury also fits.
• Not included: laceration of the dorsal artery of the right foot (S95.011D) and contusion of the foot (S90.3-). An associated open wound is coded in addition to S95.001D (S91.-), not instead of it.
• Laterality: the right-foot specificity is encoded in the sixth character (1 = right foot). Reporting S95.009D, the unspecified-foot variant, when the note clearly documents the right foot is a coding error that payers flag.

Understanding the 7th character D in subsequent encounter coding

The 7th character D in S95.001D means the patient has completed active treatment. The FY 2027 ICD-10-CM Official Guidelines reserve D, in section I.C.19.a, for encounters after active treatment. At that point the patient is receiving routine care during the healing or recovery phase.

The three 7th character options for S95.001 are often confused. This table shows when each one applies.

A frequent documentation failure is billing S95.001D while surgical or invasive vascular treatment is still ongoing. If the provider is still debriding, repairing or actively treating a fresh injury, S95.001A is correct, however many visits have occurred.

S95.001D vs. adjacent codes: How to choose the right code

Six neighboring codes sit close enough to S95.001D to cause coding errors. Check them in a fixed order: injury type first, then laterality, then the encounter stage. The path below shows how those three checks narrow the S95.0- subcategory down to one code.

The table below sets out what separates S95.001D from each neighbor.

Inclusion and exclusion notes for the S95 category

The S95 category covers injury of blood vessels at ankle and foot level. Check its boundaries before you select S95.001D.

• Included within S95: injuries to the dorsal artery, plantar artery and dorsal vein of the foot, plus other blood vessels at ankle and foot level.
• Excludes2: injury of the posterior tibial artery and vein (S85.1-, S85.8-).
• Code also: any associated open wound (S91.-). S95.001D captures the vascular injury only, so the wound needs its own code.

Documentation requirements to support S95.001D payer review

Payers reviewing an S95.001D claim look for five elements in the clinical note. A missing element can trigger a records request or an outright denial. Meeting clean claim standards before submission costs far less than appealing a denial.

1. Confirmation of prior active treatment: the note should reference the initial treatment episode, whether by date, provider, or facility. This anchors the D suffix.
2. Healing status: a brief statement that the injury is healing as expected, or the current status (for example, no active bleeding, wound closed, perfusion intact).
3. No active invasive treatment at this visit: if the current visit involves a surgical procedure or vascular intervention, the A suffix applies. The note must make clear this is a monitoring or management visit.
4. Explicit right-foot laterality: “right foot” must appear in the note. “The foot” or “the affected extremity” is not enough to support a laterality-specific code.
5. Injury type or notation of unspecified: if the injury type is documented (for example, laceration), the coder must use the more specific code. Use S95.001D only when the note does not characterize the injury type.

Running insurance eligibility verification before the visit also shows whether the plan requires prior authorization for a vascular injury follow-up.

Common claim denial reasons for S95.001D and how to avoid them

S95.001D denials tend to follow a predictable set of errors. When one slips through, the payer’s remittance explains it with a claim denial code. Practices with strong denial management workflows catch these errors before the claim goes out.

• Using D when active treatment is still ongoing. If the provider performs any invasive vascular intervention at the visit, such as debridement, surgical repair or catheter-based treatment, the encounter takes the A character. Billing the D character at that visit is a common denial trigger on subsequent-encounter trauma codes.
• Missing laterality in the clinical note. The claim carries right-foot specificity. If the note does not confirm the right foot, the payer has no basis to accept the laterality-specific code.
• Coding unspecified injury when a specific injury type is documented. If the provider writes “laceration of the dorsal artery,” the coder must use S95.011D. Defaulting to S95.001D when a more specific code is available is a coding error.
• Incompatible CPT pairing. Pairing S95.001D with a CPT code that implies active surgical intervention (for example, vascular repair codes in the 35000 series) sends a contradictory signal. The diagnosis says healing phase, while the procedure says active treatment, and payers often flag the mismatch.
• Medical necessity not established. A follow-up visit for a vascular injury must document why the visit is clinically necessary. A note that reads only “follow-up” without clinical findings does not meet medical necessity standards.

Payer and Medicare billing guidance for S95.001D

S95.001D is a valid ICD-10-CM code for Medicare and commercial claims. No National Coverage Determination (NCD) or Local Coverage Determination (LCD) is known to specifically address S95.001D. Verify in the CMS Medicare Coverage Database for your Medicare Administrative Contractor (MAC) jurisdiction.

• Prior authorization: requirements for subsequent-encounter vascular injury follow-ups vary by plan. Confirm with the specific plan, as some managed-care plans set stricter rules for specialist visits.
• Medical necessity documentation: required whether or not the plan needs prior authorization. The note must show the clinical reason for the follow-up, such as wound status, a perfusion check or a pain assessment.
• Medicare: no NCD specifically addresses dorsal artery injuries of the foot, so check for an LCD in your MAC jurisdiction.
• Claim filing: S95.001D is reported on the CMS-1500 claim form (professional services) or the UB-04 (facility services). It can be the principal or a secondary diagnosis, depending on the clinical context of the visit.

Practices with active billing compliance programs benefit from periodic audits of subsequent-encounter codes. Matching a sample of S95.001D claims to their notes confirms that the team applies the D suffix correctly. Our medical billing compliance guide covers how to structure those audits.

ICD-9-CM crosswalk and historical reference for S95.001D

Practices reviewing legacy records or older payer correspondence may need the ICD-9-CM equivalent. The ICD-9-CM index classified dorsalis pedis artery injuries under 904.7.

Treat this crosswalk as approximate. ICD-9-CM had no encounter character, so 904.7 does not show the subsequent-encounter phase that the D captures. It also had no laterality, so the same code covered both feet. Use it for historical record review, never as the basis for current claim coding.

Confirm any mapping against the CMS General Equivalence Mapping (GEM) files before you rely on it. The AAPC ICD-10-CM lookup tool offers further references for the S95 family.

How Pabau helps S95.001D claims go out complete

Follow-up claims for a healing injury often go out through a separate clearinghouse login, with eligibility checked by phone. A missing authorization number then surfaces only when the payer rejects the claim.

Pabau, the billing software for practices that we build, turns a visit’s invoice into an electronic CMS-1500 claim. It sends the claim through Claim.MD, our US clearinghouse partner, and checks patient eligibility in real time.

Before a claim goes out, Pabau checks that the details insurers need, such as membership numbers and authorization codes, are in place. Claim statuses and electronic remittances come back into the same dashboard. A denied S95.001D follow-up is visible as soon as the payer responds.

The result is fewer rejected follow-up claims and less of your team’s week spent resubmitting them.

Send complete S95.001D claims the first time

Pabau checks patient eligibility in real time and flags missing payer details before a claim leaves the practice. Claims then go out electronically through Claim.MD.

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Conclusion

Treat the D suffix as a claim the note has to prove. Before you bill S95.001D, check that the note names the earlier treatment, describes healing and records no active intervention. It also has to say right foot.

If one of those elements is missing, query the provider before you code. An addendum takes minutes, while an appeal can hold up payment for weeks.

Book a demo to see how Pabau checks eligibility and payer details before your follow-up claims reach the payer.

Continue your research

Need a framework for managing claim denials systematically? Denial management in healthcare covers the audit and appeal workflows practices use to recover denied revenue.

Want to understand how electronic claims reach payers? 837 file submission explains the EDI transaction format used to transmit ICD-10-coded claims to clearinghouses.

Looking to improve your overall billing compliance posture? What is revenue cycle management provides a full overview of the end-to-end billing process that subsequent-encounter codes like S95.001D fit into.

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