ICD10BillableValid for clinical use

ICD-10 Code M17.32: Unilateral post-traumatic osteoarthritis, left knee

M17.32 is a billable ICD-10 diagnosis code used to classify Unilateral post-traumatic osteoarthritis, left knee in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

When is it used?

  • May be used when a clinician documents unilateral post-traumatic osteoarthritis, left knee in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
13Diseases of the musculoskeletal system and connective tissue (M00-M99)
block
M00-M25Arthropathies
block
M15-M19Osteoarthritis
category
M17Osteoarthritis of knee
category
M17.3Unilateral post-traumatic osteoarthritis of knee
currentM17.3

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Orthopedic SpecialistRheumatologist

Coverage-related procedures and services

Coding guidelines

Common synonyms

Unilateral post-traumatic osteoarthritis, left knee

Frequently asked questions

Code details

CodeM17.32
SystemICD10
Display nameUnilateral post-traumatic osteoarthritis, left knee
ChapterDiseases of the musculoskeletal system and connective tissue (M00-M99)
BlockOsteoarthritis

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code M17.32 for Unilateral post-traumatic osteoarthritis, left knee | HealthAssure