L89.624 Pressure ulcer of left heel, stage 4

The ICD-10-CM code for Pressure ulcer of left heel, stage 4 is L89.624 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

12: Diseases of the skin and subcutaneous tissue (L00-L99)

Section

L80-L99: Other disorders of the skin and subcutaneous tissue (L80-L99)

Category L89

208 codes (175 billable)

FY2026 Status

Stable since FY2024

Inclusion Terms

• Healing pressure ulcer of left heel, stage 4
• Pressure ulcer with necrosis of soft tissues through to underlying muscle, tendon, or bone, left heel

U.S. Hospital Utilization

• An estimated 5,095 U.S. inpatient stays in 2023 included L89.624 among the documented diagnoses.
• 185 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

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.

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

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

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

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Reference L89.624 with the canonical source and edition:

L89.624 — Pressure ulcer of left heel, stage 4. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/L89.624

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