2026 ICD-10-CM Diagnosis Code L89.40Pressure ulcer of contiguous site of back, buttock and hip, unspecified stage

ICD-10-CM CodesL00–L99L80-L99L89

ICD-10-CM L89.40
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L89.40 is a billable ICD-10-CM diagnosis code for pressure ulcer of contiguous site of back, buttock and hip, unspecified stage. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 573 through 575, 592 through 594. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pressure ulcer of skin.

Code Identity

ICD-10-CM Code
L89.40
Billable Status
Yes — Valid for Submission
Code Describes
Pressure ulcer of contiguous site of back, buttock and hip, unspecified stage
Short Description
Pressr ulc of contig site of back, buttock and hip, unsp stg
Parent Code
Pressure ulcer of contiguous site of back, buttock and hip

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL89Pressure ulcer
This CodeL89.40Pressure ulcer of contiguous site of back, buttock and hip, unspecified stage

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Healing pressure ulcer of contiguous site of back, buttock and hip NOS
  • Healing pressure ulcer of contiguous site of back, buttock and hip, unspecified stage

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SKN003
Pressure ulcer of skin
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Pressure Sores

Pressure sores are areas of damaged skin caused by staying in one position for too long. They commonly form where your bones are close to your skin, such as your ankles, back, elbows, heels and hips. You are at risk if you are bedridden, use a wheelchair, or are unable to change your position.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert L89.40 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
707.03 Pressure ulcer, low back
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
707.05 Pressure ulcer, buttock
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
707.04 Pressure ulcer, hip
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.
ICD-9-CM
707.20 Pressure ulcer,stage NOS
ApproximateCombination The match is approximate, and more than one code can be needed to describe the source diagnosis. Confirm with contextual judgment.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About L89.40Overview

Is L89.40 (Pressure ulcer of contiguous site of back, buttock and hip) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report pressure ulcer of contiguous site of back, buttock and hip, unspecified stage on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does L89.40 group to?

When pressure ulcer of contiguous site of back, buttock and hip, unspecified stage is the principal diagnosis on an inpatient stay, it groups to MS-DRG 573, 574, 575, 592, 593, 594, with relative weights from 0.8668 to 6.5514 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of L89.40?

Under the General Equivalence Mappings, pressure ulcer of contiguous site of back, buttock and hip, unspecified stage converts to ICD-9-CM 707.03 (pressure ulcer, low back), 707.05 (pressure ulcer, buttock), and 707.04 (pressure ulcer, hip). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.