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FY2027 ICD-10-CM reference

L97.316: Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosis

By the HCC Buddy Coding Team

The official ICD-10-CM descriptor is Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosis. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Billable code. Verified against the official FY2027 order file.

CMS-HCC V28

  • HCC 380: Chronic Ulcer of Skin, Except Pressure, Through to Bone or Muscle · RAF 1.078, Community Non-Dual Aged (CNA)

Payment year 2027, 2026 dates of service. HCC from the CMS 2027 Initial ICD-10-CM Mappings; RAF from the CMS-HCC V28 relative factors. For 2027 dates of service, CMS has not yet published the payment year 2028 mappings.

CMS-HCC V24

Not used for payment year 2027 Medicare Advantage payment

ESRD

Source verification pending

PACE

Source verification pending

RxHCC

Source verification pending

HHS-HCC

Source verification pending

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).

Source: CMS FY2027 Tabular List and Alphabetic Index.

Open Tabular instructions and code details

Compare the FY2027 additions, removals and billable-status changes

What does L97.316 mean in FY2027?

The official ICD-10-CM descriptor is Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosis. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Is L97.316 billable in FY2027?

The FY2027 order file marks L97.316 as billable. Check the complete Tabular instructions and documentation before assigning it.

Does L97.316 map to an HCC?

In the CMS 2027 Initial ICD-10-CM Mappings (payment year 2027, 2026 dates of service), L97.316 maps to CMS-HCC V28 HCC 380 (Chronic Ulcer of Skin, Except Pressure, Through to Bone or Muscle). For 2027 dates of service, CMS has not yet published the payment year 2028 mappings. ESRD, RxHCC, PACE and HHS-HCC mappings are still pending verification for FY2027.

Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.

Review the FY2026 April edition