FY2027 ICD-10-CM reference
L97.31: Non-pressure chronic ulcer of right ankle
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Non-pressure chronic ulcer of right ankle. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
More specific FY2027 codes
- L97.311: Non-pressure chronic ulcer of right ankle limited to breakdown of skinBillable code
- L97.312: Non-pressure chronic ulcer of right ankle with fat layer exposedBillable code
- L97.313: Non-pressure chronic ulcer of right ankle with necrosis of muscleBillable code
- L97.314: Non-pressure chronic ulcer of right ankle with necrosis of boneBillable code
- L97.315: Non-pressure chronic ulcer of right ankle with muscle involvement without evidence of necrosisBillable code
- L97.316: Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosisBillable code
- L97.318: Non-pressure chronic ulcer of right ankle with other specified severityBillable code
- L97.319: Non-pressure chronic ulcer of right ankle with unspecified severityBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: L00-L99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: L00-L99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: L00-L99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: L00-L99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: L00-L99 (chapter, inherited).
Excludes2
lipomelanotic reticulosis (I89.8)
Source: L00-L99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: L00-L99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: L00-L99 (chapter, inherited).
Excludes2
systemic connective tissue disorders (M30-M36)
Source: L00-L99 (chapter, inherited).
Excludes2
viral warts (B07.-)
Source: L00-L99 (chapter, inherited).
Includes
chronic ulcer of skin of lower limb NOS
Source: L97 (category, inherited).
Includes
non-healing ulcer of skin
Source: L97 (category, inherited).
Includes
non-infected sinus of skin
Source: L97 (category, inherited).
Includes
trophic ulcer NOS
Source: L97 (category, inherited).
Includes
tropical ulcer NOS
Source: L97 (category, inherited).
Includes
ulcer of skin of lower limb NOS
Source: L97 (category, inherited).
Code first
any associated underlying condition, such as:
Source: L97 (category, inherited).
Code first
any associated gangrene (I96)
Source: L97 (category, inherited).
Code first
atherosclerosis of the lower extremities (I70.23-, I70.24-, I70.33-, I70.34-, I70.43-, I70.44-, I70.53-, I70.54-, I70.63-, I70.64-, I70.73-, I70.74-)
Source: L97 (category, inherited).
Code first
chronic venous hypertension (I87.31-, I87.33-)
Source: L97 (category, inherited).
Code first
diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)
Source: L97 (category, inherited).
Code first
postphlebitic syndrome (I87.01-, I87.03-)
Source: L97 (category, inherited).
Code first
postthrombotic syndrome (I87.01-, I87.03-)
Source: L97 (category, inherited).
Code first
varicose ulcer (I83.0-, I83.2-)
Source: L97 (category, inherited).
Excludes2
pressure ulcer (pressure area) (L89.-)
Source: L97 (category, inherited).
Excludes2
skin infections (L00-L08)
Source: L97 (category, inherited).
Excludes2
specific infections classified to A00-B99
Source: L97 (category, inherited).
Compare the FY2027 additions, removals and billable-status changes
What does L97.31 mean in FY2027?
The official ICD-10-CM descriptor is Non-pressure chronic ulcer of right ankle. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is L97.31 billable in FY2027?
The FY2027 order file marks L97.31 as a nonbillable heading. Select a complete billable child code.
Does L97.31 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition