L89.121 Pressure ulcer of left upper back, stage 1

Billable ICD-10-CM code, FY2026.

Applicable to

• Healing pressure ulcer of left upper back, stage 1
• Pressure pre-ulcer skin changes limited to persistent focal edema, left upper back

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)

Applies from L89.12 Pressure ulcer of left upper back

Applicable to

• Pressure ulcer of left shoulder blade

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 707.02 Pressure ulcer, upper back (approximate)
• 707.21 Pressure ulcer, stage I (approximate)

Code annotations containing back-references to L89.121

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

• L89.114 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 (this code)
• 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