M87.075

Idiopathic aseptic necrosis of left foot

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC V28

HCC92

Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis

CMS-HCC ESRD V24

HCC39

Bone/Joint/Muscle Infections/Necrosis

RxHCC V08

RXHCC80

Aseptic Necrosis of Bone

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from M87.07Idiopathic aseptic necrosis of ankle, foot and toes
Synonyms

Idiopathic aseptic necrosis of metatarsus, tarsus, and phalanges of toes

Inherited from M87Osteonecrosis
Includes

avascular necrosis of bone

Excludes 1

juvenile osteonecrosis (M91-M92) osteochondropathies (M90-M93)

Use additional

code to identify major osseous defect, if applicable (M89.7-)

Inherited from M86-M90Other osteopathies
Excludes 1

postprocedural osteopathies (M96.-)

Inherited from chapter 13Diseases of the musculoskeletal system and connective tissue
Excludes 2

arthropathic psoriasis (L40.5-) certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) compartment syndrome (traumatic) (T79.A-) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Note

Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition (M00-M25) Arthropathies (M00-M25) Includes: Disorders affecting predominantly peripheral (limb) joints (M40-M54) Dorsopathies (M40-M54) (M60-M79) Soft tissue disorders (M60-M79) (M80-M94) Osteopathies and chondropathies (M80-M94)

Official Guidelines for M87.075

FY 2026 ›

Sections that reference M87.075

Sections whose FY 2026 text names M87.075, its M87 category, or a range containing it — the chapter guidance above is the authoritative source.