L98.A123 — Non-pressure chronic ulcer of left upper arm with necrosis of muscle
Is L98.A123 billable?
Yes — L98.A123 is billable for FY2027. L98.A123 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. L98.A123 may be submitted for encounters from October 1, 2026 through September 30, 2027.
L98.A123 at a glance
| Code | L98.A123 |
|---|---|
| Description | Non-pressure chronic ulcer of left upper arm with necrosis of muscle |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L98.A123 group to?
L98.A123 sits in MDC 09 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 573Skin Graft for Skin Ulcer or Cellulitis with MCCsurgical
- 574Skin Graft for Skin Ulcer or Cellulitis with CCsurgical
- 575Skin Graft for Skin Ulcer or Cellulitis without CC/MCCsurgical
As a secondary diagnosis, L98.A123 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is L98.A123 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L98.A123. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative › upper limb › upper arm › left › with › muscle necrosis
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L98.A123, but a patient may have both at the same time. When documentation supports it, L98.A123 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
Excludes2 — not included here — inherited from L98.A
The conditions below are not part of L98.A123, but a patient may have both at the same time. When documentation supports it, L98.A123 and the excluded code may both be reported.
How long has L98.A123 existed?
L98.A123 first appears in FY2026.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the L98.A12 family? (7)
- L98.A121Non-pressure chronic ulcer of left upper arm limited to breakdown of skin
- L98.A122Non-pressure chronic ulcer of left upper arm with fat layer exposed
- L98.A124Non-pressure chronic ulcer of left upper arm with necrosis of bone
- L98.A125Non-pressure chronic ulcer of left upper arm with muscle involvement without evidence of necrosis
- L98.A126Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis
- L98.A128Non-pressure chronic ulcer of left upper arm with other specified severity
- L98.A129Non-pressure chronic ulcer of left upper arm with unspecified severity