L89.91 Pressure ulcer of unspecified site, stage 1

Billable ICD-10-CM code, FY2026.

Applicable to

• Healing pressure ulcer of unspecified site, stage 1
• Pressure pre-ulcer skin changes limited to persistent focal edema, unspecified site

Applies from L89 Pressure ulcer

Includes

• bed sore
• decubitus ulcer
• plaster ulcer
• pressure area
• pressure sore

Excludes2 (not included here)

• decubitus (trophic) ulcer of cervix (uteri) (N86)
• diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)
• non-pressure chronic ulcer of skin (L97.-)
• skin infections (L00-L08)
• varicose ulcer (I83.0, I83.2)

Code first

• any associated gangrene (I96)

MS-DRG index

Defines the logic of DRG(s) 573-575 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 707.00 Pressure ulcer, unspecified site (approximate)
• 707.21 Pressure ulcer, stage I (approximate)

Code annotations containing back-references to L89.91

Back-references to L89

• Use Additional: G90.4 Autonomic dysreflexia ("pressure ulcer (pressure area) (L89.-)")
• Type 2 Excludes: L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified ("pressure ulcer (pressure area) (L89.-)")
• Type 2 Excludes: L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified ("pressure ulcer (pressure area) (L89.-)")
• Type 2 Excludes: L98.A Non-pressure chronic ulcer of upper limb, not elsewhere classified ("pressure ulcer (pressure area) (L89.-)")
• Type 2 Excludes: M70 Soft tissue disorders related to use, overuse and pressure ("pressure ulcer (pressure area) (L89.-)")

Nearby codes

• L89.894 Pressure ulcer of other site, stage 4
• L89.896 Pressure-induced deep tissue damage of other site
• L89.899 Pressure ulcer of other site, unspecified stage
• L89.9 Pressure ulcer of unspecified site
• L89.90 Pressure ulcer of unspecified site, unspecified stage
• L89.91 Pressure ulcer of unspecified site, stage 1 (this code)
• L89.92 Pressure ulcer of unspecified site, stage 2
• L89.93 Pressure ulcer of unspecified site, stage 3
• L89.94 Pressure ulcer of unspecified site, stage 4
• L89.95 Pressure ulcer of unspecified site, unstageable
• L89.96 Pressure-induced deep tissue damage of unspecified site