The chart says “pressure injury,” but the coccyx lesion changed before the shift even ended. It was flat this morning, and now it's a dark, pear-shaped mark with irregular edges, sitting in a patient whose decline is obvious in every other system. That's the moment clinicians have to stop assuming they're looking at a preventable wound and start asking whether they're seeing a Kennedy ulcer.
A missed distinction causes trouble fast. Families get the wrong explanation, staff get pulled into avoidable blame, and the record starts telling a story that doesn't match the bedside reality. In hospice, SNF, home care, and inpatient wound programs, this is one of the clearest examples of why wound assessment, documentation, and coding have to move together.
That Sacral Wound Is Not What You Think It Is
A nurse finishes evening rounds and finds a new discoloration over the coccyx that was not there earlier in the day. The skin is purple-black, the border is irregular, and the shape does not match the tidy patterns taught for routine pressure injury assessment. The patient is actively dying, the family is at the bedside, and the question shifts from how to label the spot to whether the skin is reflecting the same shutdown the rest of the body is already showing.
That is the clinical trap. A Kennedy ulcer often appears quickly and changes color fast, which is different from the slower pressure history wound teams usually track. At the bedside, it may look butterfly, pear, or horseshoe-shaped over the sacrum or coccyx, and that shape should make the clinician pause before calling it an ordinary pressure injury.
The fastest way to get this wrong is to look only at the surface and ignore the patient's trajectory.
The bedside context matters more than the wound alone. When a lesion appears late, darkens quickly, and follows obvious systemic decline, it fits end-of-life skin failure far better than a wound caused only by local pressure. That distinction changes the plan of care, the family conversation, and the wording in the note, which is where documentation and coding problems often begin.
Defining the Kennedy Ulcer As a Sign of Skin Failure
What it represents
A Kennedy ulcer is a bedside signal that the patient's body is shutting down. In practice, it points to systemic hypoperfusion and multiorgan failure, with rapid skin breakdown that can progress from an early discoloration to full-thickness loss as physiology fails PMC clinical review.
The mechanism is not the same as an ordinary pressure injury. Pressure injury starts with unrelieved pressure, shear, or friction causing local ischemia. A Kennedy ulcer appears in the setting of dying, where hypoxia, inflammation, edema, vascular leakage, and barrier failure all contribute to the lesion PMC pathophysiology review.
Where the diagnosis came from
The term traces back to Mary Lou Kennedy in 1989, first described in an intermediate care facility in Indiana in the context of pressure ulcers. Later clinical writing linked the same pattern more clearly to the dying process and skin failure, which is why this diagnosis still sits awkwardly inside documentation systems built around preventable pressure injury language PMC historical review.
That history matters at the charting level. The concept did not come from a formal staging system or trials. It came from repeated bedside observation in patients who were already near death.
Practical rule: document the trajectory of decline, the perfusion concerns, and the overall terminal picture, not just the surface appearance.
The prognostic weight is real. Clinical sources note that the interval from recognition to death can vary widely, from 24 hours to several months Cleveland Clinic. That range should push teams toward honest goals-of-care conversations, symptom-focused care, and careful wording in the note. It also affects coding and billing review, because the record has to show why this lesion fits terminal skin failure rather than a routine, preventable wound.
Kennedy Ulcer vs Pressure Injury Key Distinctions
At the bedside, the first clue is usually speed. A Kennedy ulcer can appear over hours, sometimes called the “3:30 syndrome,” and it may move from intact skin to a full-thickness lesion within a very short window, far faster than a routine pressure injury Medipyxis clinical summary. That tempo should change the clinician's frame immediately.
Shape and color add weight to the impression. Kennedy ulcers are often sacral or coccygeal, with butterfly, pear, or horseshoe outlines and irregular borders. The discoloration may be dark purple, red, blue, yellow, or black, which fits tissue failure in motion better than a typical localized pressure wound PMC clinical review.
Kennedy Ulcer vs. Pressure Injury at a Glance
| Feature | Kennedy Ulcer | Pressure Injury |
|---|---|---|
| Onset | Appears suddenly, often over hours to days | Develops more gradually over days |
| Main driver | End-of-life skin failure, systemic hypoperfusion | Unrelieved pressure, shear, friction |
| Common location | Sacrum or coccyx | Bony prominences more broadly |
| Shape and color | Butterfly, pear, or horseshoe, often dark purple, red, blue, yellow, or black | More variable, depends on stage and cause |
| Clinical context | Active dying, multiorgan failure, rapid decline | Immobility, moisture, poor offloading, frailty |
The documentation point is direct. A lesion that appears and worsens this quickly in a dying patient should not be written up as poor turning compliance unless the chart supports that story. Use the pressure injury staging guide for standard staging language, but do not force a Kennedy ulcer into a category it does not fit.
Chart the trajectory, not just the surface. If the wound is changing by the hour, the note should say so, with the decline, perfusion concerns, and terminal context spelled out in plain language. That wording helps the care plan, and it also gives coders and surveyors a defensible record of why this lesion reads as terminal skin failure rather than a routine preventable wound.
Bedside Assessment and Staging Pitfalls
What to document first
A defensible assessment starts with the visible facts. Document location, shape, size, color, border quality, and speed of change. If the lesion is on the coccyx, is pear-shaped, and changed from intact skin to dark purple over a short interval, that descriptive language belongs in the note before any diagnostic label does.
The surrounding context matters just as much. Record the patient's terminal trajectory, pain behavior, exudate type, odor, and bleeding. If the skin is fragile and the lesion is progressing despite routine preventive care, that detail supports the larger clinical picture of skin failure rather than a preventable breakdown story.
Why staging often goes wrong
Forcing a Kennedy ulcer into a standard pressure injury stage creates confusion. Stage labels are designed to describe pressure-related tissue loss at a point in time. A Kennedy ulcer is different because the lesion is expressing the dying process, not just the depth of local damage.
That's why a note should read more like, “New 3 cm pear-shaped purple and black lesion on coccyx, rapidly evolving, consistent with Kennedy terminal ulcer,” than “Stage 2” or “Unstageable” without context. If the note sounds like it's trying to make the wound fit a billing category first, the clinical story usually gets distorted.
Documentation pitfall: when the chart says only “pressure injury,” surveyors and payers may assume preventability even when the bedside picture supports end-of-life skin failure.
The safest habit is to describe what was seen and tie it to the patient's overall decline. That protects the record, helps the team speak consistently, and reduces the chance that a rapidly evolving terminal lesion gets mistaken for a quality failure.
Palliative Management Strategies Not Curative
Comfort first, healing second is the wrong order
Once a Kennedy ulcer is recognized, the goal is symptom relief. The wound is part of the dying process, so care should focus on easing distress rather than forcing closure. Chasing healing in a lesion that reflects active decline usually adds pain, bleeding, and agitation without changing the outcome.
Dressings should follow the symptom burden. A non-adherent foam or other protective, absorbent dressing is often reasonable when the main issues are drainage, friction, or fragile periwound skin. The practical goal is to limit leakage, protect the surrounding tissue, and make dressing changes as gentle as possible.
What usually helps, and what usually doesn't
Odor, exudate, and pain are the problems families notice first. Document exudate as serous, serosanguinous, purulent, or bloody when present, then match dressing change frequency to the amount of drainage. If odor is present, say so plainly. Families read smell as neglect unless the chart and the bedside explanation are clear.
Aggressive debridement is usually the wrong choice unless there is a narrow comfort reason and the patient can tolerate it. In terminal skin failure, sharp or extensive debridement can increase pain and bleeding. If a wound team considers debridement at all, the reason should be explicit and tied to comfort, not to wound closure.
Families and staff often want a cleaner answer than the evidence can give. The literature supports a palliative approach, but it does not settle which exact dressing, turning pattern, or analgesic plan best reduces pain, odor, or leakage in every case. That gap is why bedside judgment still matters, especially in a home health wound care workflow built around symptom control and realistic goals.
Turn orders should also be honest. Some patients tolerate repositioning poorly, and forcing frequent turns can worsen distress more than it helps. In hospice care, I would rather document the trade-off clearly than pretend every preventive measure is achievable.
Documentation and Coding for Surveyors and Payers
The chart has to match the bedside story. A Kennedy ulcer is a disputed label in coding because it sits close to the line between predictable pressure injury language and end-of-life skin failure. If the note does not show rapid change, terminal decline, and the wound's overall context, surveyors may read it as a preventable sacral ulcer instead of a lesion tied to the dying process.
A defensible note is specific. Document the appearance, location, rapid evolution, and systemic context. State that the lesion is consistent with Kennedy terminal ulcer or end-of-life skin failure when the presentation supports that conclusion. “Skin breakdown” is too vague and leaves room for the wrong interpretation.
For coding, follow the organization's CDI and coding guidance for the underlying condition and the wound category used in your setting. The diagnosis must match the provider note, the nursing record, and the wound team assessment. If those descriptions do not line up, fix the inconsistency before the chart goes out the door. That protects the record and reduces denials.
A common miss is documentation that sounds hopeful when the plan is palliative. Say what you are treating, pain, odor, drainage, fragile skin, and say what you are not trying to do. If the wound is being managed for comfort, the note should make that clear.
Privacy and workflow matter too. A practical reference is AIDictation's guide to app privacy, especially when a practice uses voice capture or draft generation in the charting flow. The standard is simple, keep the note accurate, complete, and secure.
For coding teams, the pressure ulcer ICD-10 guide is useful when pressure injury remains in the differential. The wrong code on the wrong wound invites avoidable denials, survey questions, and quality review problems, so the documentation has to make the distinction plain.
Sample SOAP Note and Communicating with Families
A usable SOAP note doesn't need drama. It needs specificity.
S: Patient nonverbal, grimacing with movement, family reports marked decline over last day.
O: New 4 x 5 cm pear-shaped dark purple and black lesion on coccyx with irregular borders, rapidly evolved since earlier assessment, scant serosanguinous drainage, periwound skin fragile.
A: Kennedy terminal ulcer, consistent with end-stage disease process and skin failure, not a typical pressure injury.
P: Continue palliative wound care, protect periwound skin, use gentle absorbent dressing, manage pain and odor, avoid aggressive debridement, update family and hospice team.
That language works because it tells the full story without overreaching. It describes what was seen, names the likely process, and avoids pretending the wound is something it is not.
Family conversations should be equally plain. A clinician can say the lesion is part of the body's shutdown process, not a sign that staff failed to turn the patient. That framing usually lowers guilt and stops the conversation from drifting into blame.
One hospice review found an estimated Kennedy terminal ulcer prevalence of 6.1%, and another source reported that 55.7% of patients die within 6 weeks of ulcer onset PubMed review. Those numbers support what bedside clinicians already see, this lesion often belongs to the terminal phase, so goals-of-care conversations need to happen quickly and clearly.
If a practice wants cleaner notes without losing clinical detail, EkagraHealth AI can help capture the encounter, draft the SOAP note, and map the wound language into the right documentation workflow. Visit EkagraHealth AI to see how it can support faster, more defensible wound charting in hospice, SNF, home health, and outpatient wound care.
