ICD10BillableValid for clinical use

ICD-10 Code M05.812: Other rheumatoid arthritis with rheumatoid factor of left shoulder

M05.812 is a billable ICD-10 diagnosis code used to classify Other rheumatoid arthritis with rheumatoid factor of left shoulder 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 other rheumatoid arthritis with rheumatoid factor of left shoulder 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
M05-M14Inflammatory polyarthropathies
category
M05Rheumatoid arthritis with rheumatoid factor
category
M05.8Other rheumatoid arthritis with rheumatoid factor
category
M05.81Other rheumatoid arthritis with rheumatoid factor of shoulder
currentM05.81

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

Coding guidelines

Common synonyms

Other rheumatoid arthritis with rheumatoid factor of left shoulder

Frequently asked questions

Code details

CodeM05.812
SystemICD10
Display nameOther rheumatoid arthritis with rheumatoid factor of left shoulder
ChapterDiseases of the musculoskeletal system and connective tissue (M00-M99)
BlockInflammatory polyarthropathies

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 M05.812 for Other rheumatoid arthritis with rheumatoid factor of left shoulder | HealthAssure