L89.1
Pressure ulcer of back
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 15 never code together
L89code
Excludes2
- decubitus (trophic) ulcer of cervix (uteri) (N86)N86
- diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)E08.621E08.622E09.621E09.622E10.621E10.622E11.621E11.622E13.621E13.622
- non-pressure chronic ulcer of skin (L97.-)L97.-
- skin infections (L00-L08)L00-L08
- varicose ulcer (I83.0, I83.2)I83.0I83.2
L00-L99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- lipomelanotic reticulosis (I89.8)I89.8
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- viral warts (B07.-)B07.-
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 6
Index entries leading here 1
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative
- pressure (pressure area) L89.9
- back L89.1
- stage 1 (healing) (pre-ulcer skin changes limited to persistent focal edema)
- back L89.1
- stage 2 (healing) (abrasion, blister, partial thickness skin loss involving epidermis and/or dermis)
- back L89.1
- stage 3 (healing) (full thickness skin loss involving damage or necrosis of subcutaneous tissue)
- back L89.1
- stage 4 (healing) (necrosis of soft tissues through to underlying muscle, tendon, or bone)
- back L89.1
- unspecified stage
- back L89.1
- unstageable
- back L89.1
- pressure (pressure area) L89.9
Alongside this code 8 same parent — L89
L89.0 Pressure ulcer of elbow category L89.2 Pressure ulcer of hip category L89.3 Pressure ulcer of buttock category L89.4 Pressure ulcer of contiguous site of back, buttock and hip category L89.5 Pressure ulcer of ankle category L89.6 Pressure ulcer of heel category L89.8 Pressure ulcer of other site category L89.9 Pressure ulcer of unspecified site category
Subordinate codes 6
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.