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ICD-10-CM 2027

ICD-10 code for patellar tendinitis

M76.5

Patellar tendinitis

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Tendinitis, tendonitis › patellar”. Page updated September 29, 2026.

About coding patellar tendinitis

The ICD-10-CM code for patellar tendinitis is M76.5 (Patellar tendinitis).

Within M76 (enthesopathies, lower limb, excluding foot), M76.5 is specifically for patellar tendinitis. Related codes cover 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), achilles tendinitis (M76.6), peroneal tendinitis (M76.7), other specified enthesopathies of lower limb, excluding foot (M76.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: M76.50 (unspecified knee), M76.51 (right knee) and M76.52 (left knee).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about patellar tendinitis ICD-10 codes

What is the ICD-10 code for patellar tendinitis?

M76.5 — Patellar tendinitis (a header code; report a more specific subcode).

Is M76.5 billable?

No. M76.5 is a header code. Report one of its more specific subcodes instead.