NPIAP pressure injury stage selector
NPIAP 2016 pressure-injury staging: classifies from a mucosal location, whether skin is intact and the erythema behavior (blanchable / non-blanchable / deep discoloration), whether slough/eschar obscures the wound base, and the depth.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Erythema behavior if skin intact
- Blanchable erythema (no PI)
- Depth if skin not intact and not obscured
- Partial-thickness; exposed dermis (Stage 2)
Result: Blanchable erythema does not meet NPIAP 2016 criteria for a pressure injury.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Mucosal
- Mucosal Membrane Pressure Injury (staging system does not apply).
- Stage 1
- Intact skin with non-blanchable erythema.
- Stage 2
- Partial-thickness skin loss with exposed dermis.
- Stage 3
- Full-thickness skin loss; subcutaneous fat visible.
- Stage 4
- Full-thickness skin and tissue loss; exposed bone, tendon, or muscle.
- Unstageable
- Full-thickness loss obscured by slough or eschar.
- DTPI
- Persistent non-blanchable deep red, maroon, or purple discoloration.
What you enter
- Mucosal membrane location
- Skin intact
- Erythema behavior if skin intact
- Slough or eschar obscures the wound base
- Depth if skin not intact and not obscured
How this is calculated
Edsberg LE, Black JM, Goldberg M, McNichol L, Moore L, Sieggreen M. Revised National Pressure Ulcer Advisory Panel Pressure Injury Staging System. J Wound Ostomy Continence Nurs. 2016;43(6):585-597. Adopted by NPIAP (formerly NPUAP) 2019. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.