ICD-10-CM 2027
ICD-10 code for lower limb enthesopathy
From the official ICD-10-CM alphabetic index entry “Enthesopathy (peripheral) › lower limb (excluding foot)”. Page updated September 29, 2026.
About coding lower limb enthesopathy
The ICD-10-CM code for lower limb enthesopathy is M76.9 (Unspecified enthesopathy, lower limb, excluding foot). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M76.9.
Within M76, choose M76.9 (Unspecified enthesopathy, lower limb, excluding foot) only when documentation doesn't support a more specific option: Gluteal tendinitis (M76.0), Psoas tendinitis (M76.1), iliac crest spur (M76.2), Iliotibial band syndrome (M76.3), tibial collateral bursitis [Pellegrini-Stieda] (M76.4), patellar tendinitis (M76.5), achilles tendinitis (M76.6), peroneal tendinitis (M76.7) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 557 (Tendonitis, Myositis and Bursitis with MCC, relative weight 1.489) and DRG 558 (Tendonitis, Myositis and Bursitis without MCC, relative weight 0.8875), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific lower limb enthesopathy codes (official index)
- Achilles tendinitis
- ankle and tarsus M77.5 — Other enthesopathy of foot and ankle
- specified type NEC
- anterior tibial syndrome M76.81 — Anterior tibial syndrome
- gluteal tendinitis
- iliac crest spur
- iliotibial band syndrome
- patellar tendinitis
- pelvic region
- peroneal tendinitis
- posterior tibial syndrome M76.82 — Posterior tibial tendinitis
- psoas tendinitis
- specified type NEC M76.89 — Other specified enthesopathies of lower limb, excluding foot
- tibial collateral bursitis
Common questions about lower limb enthesopathy ICD-10 codes
What is the ICD-10 code for lower limb enthesopathy?
- M76.9 — Unspecified enthesopathy, lower limb, excluding foot. More specific codes apply when the documentation supports them: M77.5, M76.81, M76.82, M76.89.
What is the ICD-10 code for ankle and tarsus lower limb enthesopathy?
- M77.5 — Other enthesopathy of foot and ankle (header code; choose a more specific subcode).
What is the ICD-10 code for anterior tibial syndrome lower limb enthesopathy?
- M76.81 — Anterior tibial syndrome (header code; choose a more specific subcode).
What is the ICD-10 code for posterior tibial syndrome lower limb enthesopathy?
- M76.82 — Posterior tibial tendinitis (header code; choose a more specific subcode).
Is M76.9 billable?
- Yes. M76.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M76.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M76.9 as a principal diagnosis.
Is M76.9 a CC or MCC?
- No. M76.9 is neither a CC nor an MCC under MS-DRG v44.0.