L89.1 Pressure ulcer of back

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Pressure ulcer of back is L89.1 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
L80-L99: Other disorders of the skin and subcutaneous tissue (L80-L99)
Category L89
208 codes (175 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to L89.1:

  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › back
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › stage 4 (healing) (necrosis of soft tissues through to underlying muscle, tendon, or bone) › back
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › unspecified stage › back
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › stage 2 (healing) (abrasion, blister, partial thickness skin loss involving epidermis and/or dermis) › back
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › unstageable › back
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › stage 1 (healing) (pre-ulcer skin changes limited to persistent focal edema) › back
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative › pressure (pressure area) › stage 3 (healing) (full thickness skin loss involving damage or necrosis of subcutaneous tissue) › back

Official Coding Guidelines

Pressure ulcer stages—L89 identifies site/stage; code all ulcers

a. Pressure ulcer stage codes 1) Pressure ulcer stages Codes in category L89, Pressure ulcer, identify the site and stage of the pressure ulcer. The ICD-10-CM classifies pressure ulcer stages based on severity, which is designated by stages 1-4, deep tissue pressure injury, unspecified stage, and unstageable. Assign as many codes from category L89 as needed to identify all the pressure ulcers the patient has, if applicable. See Section I.B.14. for pressure ulcer stage documentation by clinicians other than patient's provider.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.12.a.1
Unstageable pressure ulcers—L89.--0 based on clinical documentation

2) Unstageable pressure ulcers Assignment of the code for unstageable pressure ulcer (L89.--0) should be based on the clinical documentation. These codes are used for

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.12.a.2

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

L89 Pressure ulcer

More Specific Codes

L89.10 Pressure ulcer of unspecified part of back L89.100 Pressure ulcer of unspecified part of back, unstageable L89.101 Pressure ulcer of unspecified part of back, stage 1 L89.102 Pressure ulcer of unspecified part of back, stage 2 L89.103 Pressure ulcer of unspecified part of back, stage 3 L89.104 Pressure ulcer of unspecified part of back, stage 4 L89.106 Pressure-induced deep tissue damage of unspecified part of back L89.109 Pressure ulcer of unspecified part of back, unspecified stage L89.11 Pressure ulcer of right upper back L89.110 Pressure ulcer of right upper back, unstageable L89.111 Pressure ulcer of right upper back, stage 1 L89.112 Pressure ulcer of right upper back, stage 2 L89.113 Pressure ulcer of right upper back, stage 3 L89.114 Pressure ulcer of right upper back, stage 4 L89.116 Pressure-induced deep tissue damage of right upper back L89.119 Pressure ulcer of right upper back, unspecified stage L89.12 Pressure ulcer of left upper back L89.120 Pressure ulcer of left upper back, unstageable L89.121 Pressure ulcer of left upper back, stage 1 L89.122 Pressure ulcer of left upper back, stage 2 L89.123 Pressure ulcer of left upper back, stage 3 L89.124 Pressure ulcer of left upper back, stage 4 L89.126 Pressure-induced deep tissue damage of left upper back L89.129 Pressure ulcer of left upper back, unspecified stage L89.13 Pressure ulcer of right lower back L89.130 Pressure ulcer of right lower back, unstageable L89.131 Pressure ulcer of right lower back, stage 1 L89.132 Pressure ulcer of right lower back, stage 2 L89.133 Pressure ulcer of right lower back, stage 3 L89.134 Pressure ulcer of right lower back, stage 4

Related Codes in L89

L89 Pressure ulcer L89.0 Pressure ulcer of elbow L89.00 Pressure ulcer of unspecified elbow L89.000 Pressure ulcer of unspecified elbow, unstageable L89.001 Pressure ulcer of unspecified elbow, stage 1 L89.002 Pressure ulcer of unspecified elbow, stage 2 L89.003 Pressure ulcer of unspecified elbow, stage 3 L89.004 Pressure ulcer of unspecified elbow, stage 4 L89.006 Pressure-induced deep tissue damage of unspecified elbow L89.009 Pressure ulcer of unspecified elbow, unspecified stage L89.01 Pressure ulcer of right elbow L89.010 Pressure ulcer of right elbow, unstageable L89.011 Pressure ulcer of right elbow, stage 1 L89.012 Pressure ulcer of right elbow, stage 2 L89.013 Pressure ulcer of right elbow, stage 3 L89.014 Pressure ulcer of right elbow, stage 4 L89.016 Pressure-induced deep tissue damage of right elbow L89.019 Pressure ulcer of right elbow, unspecified stage L89.02 Pressure ulcer of left elbow L89.020 Pressure ulcer of left elbow, unstageable
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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