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Abnormal Sacroiliac Joint Morphology C0262621

Published: July 22, 2026Updated: August 25, 2026

An abnormality in the structure of the joint connecting the spine to the pelvis. This can cause lower back pain and may result from arthritis, injury, or developmental issues.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
M79.9
ICD-11
FA00.0
Body system
musculoskeletal
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Radiating pain to thigh

Buttock pain

(musculoskeletal)

Joint pain or stiffness

(musculoskeletal)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Sacroiliac joint pain

(musculoskeletal)

Limited hip range of motion

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

SI joint stabilization program

Comprehensive therapy including manual manipulation, targeted stretching, and strengthening of hip and pelvic girdle muscles. Aims to restore normal biomechanics and reduce joint stress.

physical_therapy
3

Anti-inflammatory medication

Non-steroidal anti-inflammatory drugs to reduce inflammation and pain in the sacroiliac joint. Used as adjunct to physical therapy for symptom control during rehabilitation.

medication

Additional treatment options

SI joint injection therapy

Image-guided injection of corticosteroid and anesthetic into the sacroiliac joint for diagnostic confirmation and therapeutic pain relief. Provides targeted anti-inflammatory effect.

procedure

Ergonomic modifications

Workplace and daily activity adjustments including proper sitting posture, supportive footwear, and sleeping position optimization. Reduces mechanical stress on the SI joint.

lifestyle

SI joint fusion

Surgical fusion of the sacroiliac joint for chronic, refractory cases causing significant disability. Considered when conservative measures have failed over 6+ months.

surgical

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Abnormal Sacroiliac Joint Morphology C0262621?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Slipped FM, Backer KM. North American Spine Society clinical practice guidelines for sacroiliac joint pathology. Spine J. 2022.

guideline2022
2

Hermann KG, Baraliakos X. Magnetic resonance imaging of the sacroiliac joint in spondyloarthritis: a review. Eur Radiol. 2021.

review2021
3

Rashbaum RF, Ohnmeiss DD, Lindley EM. Minimally invasive sacroiliac joint fusion for chronic sacroiliac joint pain: a prospective randomized controlled trial. Pain Physician. 2020.

clinical_trial2020
4

Stødkilde-Jørgensen AG, Munk H, Høy K. Computed tomography versus MRI for detection of sacroiliac joint structural abnormalities: a systematic review and meta-analysis. Skeletal Radiol. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Abnormal Sacroiliac Joint Morphology C0262621. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy