M70.979 Unspecified soft tissue disorder related to use, overuse and pressure, unspecified ankle and foot

Billable ICD-10-CM code, FY2026.

Applies from M70 Soft tissue disorders related to use, overuse and pressure

Includes

• soft tissue disorders of occupational origin

Excludes1 (never code together)

• bursitis NOS (M71.9-)

Excludes2 (not included here)

• bursitis of shoulder (M75.5)
• enthesopathies (M76-M77)
• pressure ulcer (pressure area) (L89.-)

Use additional code

• external cause code to identify activity causing disorder (Y93.-)

MS-DRG index

Defines the logic of DRG(s) 555-556 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 729.90 Disorders of soft tissue, unspecified (approximate)

Code annotations containing back-references to M70.979

Back-references to M70

• Type 1 Excludes: M65 Synovitis and tenosynovitis ("soft tissue disorders related to use, overuse and pressure (M70.-)")
• Type 1 Excludes: M71 Other bursopathies ("bursitis related to use, overuse or pressure (M70.-)")
• Type 2 Excludes: M76 Enthesopathies, lower limb, excluding foot ("bursitis due to use, overuse and pressure (M70.-)")
• Type 2 Excludes: M77 Other enthesopathies ("bursitis due to use, overuse and pressure (M70.-)")

Nearby codes

• M70.962 Unspecified soft tissue disorder related to use, overuse and pressure, left lower leg
• M70.969 Unspecified soft tissue disorder related to use, overuse and pressure, unspecified lower leg
• M70.97 Unspecified soft tissue disorder related to use, overuse and pressure of ankle and foot
• M70.971 Unspecified soft tissue disorder related to use, overuse and pressure, right ankle and foot
• M70.972 Unspecified soft tissue disorder related to use, overuse and pressure, left ankle and foot
• M70.979 Unspecified soft tissue disorder related to use, overuse and pressure, unspecified ankle and foot (this code)
• M70.98 Unspecified soft tissue disorder related to use, overuse and pressure other
• M70.99 Unspecified soft tissue disorder related to use, overuse and pressure multiple sites