ICD-10 code S62.163P: Displaced pisiform fracture, malunion
ICD-10 code S62.163P is a billable diagnosis code for a displaced fracture of th...
Last Updated: August 7, 2026
Key takeaways
ICD-10 code S60.931D covers an unspecified superficial injury of the right thumb at a follow-up encounter, and it is billable for FY2026.
The 7th character D applies during the healing phase, once active treatment has ended and routine care has begun.
Encounter type turns on whether active treatment happened anywhere, not on whether your own practice has met the patient before.
The most common error is billing S60.931A for a follow-up wound check or physical therapy session.
Practice management software like Pabau stores encounter history beside the clinical note, so coders can confirm the phase of care.
ICD-10 code S60.931D is a billable ICD-10-CM diagnosis code for an unspecified superficial injury of the right thumb, subsequent encounter. Coders use it when a patient returns for follow-up care after the initial treatment phase has ended. The code took effect on October 1, 2025, and is valid for the FY2026 ICD-10-CM edition.
The full clinical description is unspecified superficial injury of right thumb, subsequent encounter. “Unspecified” means the record never names the injury type, such as an abrasion, a blister, or a contusion. The side is documented as the right thumb, and the visit is a follow-up. The Centers for Medicare and Medicaid Services (CMS) updates the ICD-10-CM code set every October.
One detail worth knowing before you bill it: S60.931D is exempt from present on admission (POA) reporting. If your team handles claims management for hand and wrist visits, this code will appear often in outpatient and rehabilitation settings.
Understanding the 7th character D: Subsequent encounter
The 7th character is where most coding errors happen with S60.931D. It tells the payer which phase of care the visit belongs to, and the wrong letter can trigger a denial or an audit. The same logic runs through the whole S60-S69 block, so codes such as S62.163P and S63.004S follow it too.
Under the ICD-10-CM Official Guidelines, subsequent encounter applies while the patient is in the healing or recovery phase. Active treatment has already finished, either at an earlier visit or with a different provider. Wound checks, dressing changes, rehabilitation appointments, and follow-up consultations all take the D suffix.
One question settles almost every case. Has active treatment for this injury already been delivered anywhere, by anyone? If the answer is yes, the visit is a subsequent encounter, even when your practice is meeting the patient for the first time.
S60.931A, S60.931D, and S60.931S: All three variants compared
A common mistake looks like this. A physical therapist treats a patient for hand rehabilitation after an emergency department visit, then codes the first therapy session as S60.931A. The emergency department already delivered the active treatment, so that first appointment takes S60.931D instead.
Referral-heavy settings run into this most often. An osteopathy practice or a chiropractic practice usually meets the patient after someone else has treated the injury. Almost every visit on those schedules is a subsequent encounter.
Pro Tip
Flag encounters in your scheduling system as ‘follow-up’ or ‘subsequent’ at the time of booking. The clinician then sees the encounter type before writing a single line of the note. That one cue removes most of the guesswork between D and A.
ICD-10-CM code hierarchy for S60.931D
Knowing where S60.931D sits in the classification helps you find sibling codes and confirm the right level of specificity. The CDC ICD-10-CM web tool carries the full tabular list for navigating it.
S60.931 on its own is not billable. The 7th character is what takes it to a valid billable level. Submit it without D, A, or S appended and you get a claim edit or a rejection. A code verification step inside the documentation workflow catches that truncation before the claim leaves the practice.
Related and adjacent codes for thumb injuries
Urgent care and orthopedic coders meet the full S60.93x family alongside other superficial injury codes. Knowing the siblings reduces specificity errors when laterality or injury type changes between encounters.
When the record supports greater specificity, use the more specific code. A note that clearly says “abrasion” takes S60.311D rather than the unspecified S60.931D. The AAPC code lookup indexes the full set of S60 siblings for reference.
Clinical documentation requirements for S60.931D
Four documentation elements must be present in the clinical record to support S60.931D. Miss any one of them and the payer has grounds to downcode or deny the claim. Structured client record management with templated note fields keeps those four elements consistent across high-volume injury codes.
- Laterality confirmed as right thumb. The note must name the right hand and thumb. “Thumb injury” without a side does not support S60.931D, and would take S60.939D instead.
- Injury type documented as superficial. The record should confirm the wound does not penetrate below the skin surface. If depth is unclear, document the examination findings behind that call.
- Encounter stage clearly stated as subsequent. The note must show that a prior provider or visit delivered the initial active treatment. Even a date for that first visit supports the D suffix.
- Nature of the current visit. A routine wound check, therapy session, dressing change, or monitoring visit all align with what a subsequent encounter represents under the guidelines.
Practices that use structured medical forms for follow-up visits can pre-populate the laterality and encounter stage fields. That removes the reliance on free-text notes, which are far easier to leave incomplete. The digital forms workflow in Pabau lets you build those fields straight into a follow-up visit template.
Billing and reimbursement guidance
Major payers, including Medicare and the commercial insurers, accept S60.931D as a valid subsequent encounter diagnosis for a superficial right thumb injury. Four billing considerations shape how it lands on the claim.
- Pair it with an appropriate E/M code. S60.931D is a diagnosis code, not a procedure code. Pair it with an evaluation and management (E/M) CPT code, such as 99213 or 99214, or with a therapy CPT code for rehabilitation visits.
- Do not re-use S60.931A for follow-up visits. Some payers flag repeated use of the initial encounter code within one episode of care. After the first treating encounter, every visit for that injury carries the D suffix.
- Unspecified codes carry audit risk. Medicare and many commercial payers prefer specificity. Use a more specific code where the documentation supports one, and keep S60.931D for records that genuinely do not name the wound type.
- Sequela is not interchangeable with subsequent encounter. Using S60.931S before the injury has healed is a coding error. Sequela applies only once the condition has resolved and a late effect has emerged.
Payer edits and coverage notes shift between fiscal years, so confirm coverage at the payer level before you submit. Teams that also code forearm and wrist injuries, such as S56.114S, get more out of one shared verification step than out of four separate ones.
How Pabau supports ICD-10 coding for follow-up visits
In most practices, the clinician writing a follow-up note has no easy way to see what happened at the first visit. They pick a 7th character from memory, or they copy forward whatever the last claim used. That is how S60.931A ends up on a fourth appointment.
Practice management software like Pabau keeps the encounter history in the same client record as the note. The clinician can see the date of the initial treating visit while they write, then attach the ICD-10 code without leaving the chart. Encounter type stops being a guess.
The billing side picks the record up from there. Claims run through a pre-submission review that surfaces truncated codes and encounter-type mismatches before anything reaches the payer. Your team spends its time on the handful of claims that need judgment, not on reworking the ones that were avoidable.
Pro Tip
Add a mandatory encounter-type field to your follow-up visit template, with initial and subsequent as the only two options. Built into the standard wrist and hand documentation flow, it catches the most common 7th character error before the claim is ever submitted.
Reduce coding errors on every claim
Pabau keeps encounter history, ICD-10 code entry, and claim review in one client record, so the right code follows the right note. See how it handles hand and wrist injury follow-ups.
Conclusion
S60.931D stops being difficult the moment you fix the question you ask at the note. Not “have I seen this patient before”, but “has anyone treated this injury yet”. Answer that one honestly and the 7th character picks itself.
The trade-off worth remembering is specificity. S60.931D is safe when the record genuinely does not name the wound type, and a liability when it does. Improving the note is usually the cheaper fix, because better documentation earns you the more specific code for free.
Book a demo to see how Pabau keeps encounter history in front of the clinician, so follow-up injury visits get coded right the first time.
Continue your research
Assessing a wrist injury before you code it? The scaphoid fracture test walks through the examination that rules a fracture in or out.
Coding a hand fracture that healed badly? S62.163P covers a different 7th character on the same body region.
Billing a digit replantation? 20822 sets out the RVUs, modifiers, and the denials that follow this procedure.
Working further up the arm? S52.271A applies the same initial-encounter rules to a forearm fracture.
Frequently asked questions
What does ICD-10 code S60.931D mean?
S60.931D is a billable ICD-10-CM diagnosis code for an unspecified superficial injury of the right thumb at a subsequent encounter. The “D” shows that the patient has already had active treatment for the thumb injury. They are now back for follow-up, rehabilitation, or routine monitoring care.
Is S60.931D a billable ICD-10 code?
Yes. S60.931D is a fully billable and specific ICD-10-CM code. It is valid for dates of service on or after October 1, 2025, under the FY2026 edition. The parent code S60.931 is not billable without a 7th character.
What is the difference between subsequent encounter and sequela?
Subsequent encounter (7th character D) applies while the patient is still being cared for during the healing phase. Sequela (7th character S) applies only after the injury has fully healed. It covers a late effect, such as chronic stiffness or scar formation, that has emerged as a condition of its own.
When should I use S60.931D instead of S60.931A?
Use S60.931A only at the first visit where active treatment is delivered. Every visit after that takes S60.931D, including the first physical therapy session following an emergency department visit. What decides the encounter type is whether active treatment has already happened anywhere. Meeting the patient for the first time yourself does not make the visit initial.
What is the parent code of S60.931D?
The parent code is S60.931, which describes an unspecified superficial injury of the right thumb with no encounter phase attached. S60.931 is not billable on its own. It needs a 7th character of A, D, or S to be valid for submission.
Does S60.931D require additional documentation for billing?
Yes. The record must confirm right thumb laterality, a superficial injury type, and that this visit is a subsequent encounter. It also needs the clinical purpose of the visit. Without documented laterality the claim would take S60.939D instead, and payers may query it.
