ClinicFlow logoClinicFlow
ICD-10-CM · FY2026 · Hip
M16.11

Unilateral primary osteoarthritis, right hip

Billable FY2026 ICD-10-CM diagnosis code, hip region. What it covers, how to bill it cleanly, and what these patients sound like when they call.

What M16.11 covers

Primary osteoarthritis of the right hip: the hip-replacement pipeline's equivalent of M17.11. Primary indicates degenerative disease without an identified secondary cause such as prior trauma or dysplasia, and laterality is expected on the claim.

Related codes in this family

CodeDescription
M16.10Unilateral primary osteoarthritis, unspecified hip
M16.12Unilateral primary osteoarthritis, left hip
M16.0Bilateral primary osteoarthritis of hip
M16.2Bilateral osteoarthritis resulting from hip dysplasia
M16.30Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip
M16.31Unilateral osteoarthritis resulting from hip dysplasia, right hip
Codes and descriptions are from the official FY2026 ICD-10-CM files (public-domain CMS data). Coding decisions belong to your documentation and your coder; this page is reference context, not coding or billing advice. Denials on specificity grounds? See the denial codes playbook.

What these patients sound like on the phone

Hip arthritis callers describe groin pain, trouble with shoes and socks, and sleep interrupted by position changes. They route to the joint replacement team, and because hip pain masquerades (back, buttock, knee), good intake notes on pain location save a misrouted first visit.

ClinicFlow's voice AI runs this intake on every call for joint replacement practices: capturing the story, applying your routing rules, and booking the right visit type with the right surgeon. See voice AI for joint replacement practices or the Call Library for how each call type is handled.

Frequently asked questions

What does ICD-10 code M16.11 mean?

M16.11 is the FY2026 ICD-10-CM code for unilateral primary osteoarthritis, right hip. Primary osteoarthritis of the right hip: the hip-replacement pipeline's equivalent of M17.

Groin pain versus buttock pain: does it matter for coding?

It matters for the differential. True hip joint arthritis classically presents with groin pain; buttock-dominant pain often implicates the spine, which changes both the specialist and the eventual code.

Is this the current FY2026 code?

Yes. M16.11 appears in the official FY2026 ICD-10-CM code set (effective October 1, 2025). ICD-10-CM is public-domain CMS data; verify annually as codes are revised each fiscal year.

Related resources

Every one of these diagnoses starts as a phone call.

ClinicFlow answers all of them, 24/7, and books them with the right surgeon.

Call (281) 502-8583 Book a demo