ICD-11 6A02: Autism Spectrum Disorder – Diagnosis & Coding Guide

What is ICD-11 6A02: Autism Spectrum Disorder? ICD-11 code 6A02 represents Autism Spectrum Disorder within the World Health Organization’s eleventh revision of the International Classification of Diseases. This diagnostic code replaced the categorical ICD-10 F84 series with a unified spectrum approach that captures the full range of autism presentations through severity specifiers rather than distinct […]
ICD-11 3A00: Iron Deficiency Anaemia – Diagnosis & Coding Guide

ICD-11 3A00: Iron Deficiency Anaemia – Diagnosis & Coding Guide Iron deficiency anaemia remains the most prevalent nutritional disorder worldwide, affecting approximately two billion people. The World Health Organization’s ICD-11 classification introduced code 3A00 to standardise how clinicians document and report this haematological condition. Understanding proper code application ensures accurate clinical records, appropriate treatment pathways, […]
ICD-11 DA22: GERD Clinical Guide

ICD-11 DA22: Gastro-oesophageal Reflux Disease (GERD) Clinical Guide ICD-11 DA22 is the WHO classification code for Gastro-oesophageal Reflux Disease (GERD). Healthcare practices transitioning from ICD-10 K21 need structured documentation workflows that capture diagnostic criteria, symptom severity, and objective findings required for accurate coding. The WHO ICD-11 browser defines DA22 within the digestive system chapter, requiring […]
ICD-11 6A71: Recurrent Depressive Disorder – Diagnosis & Coding Guide

ICD-11 6A71: Recurrent Depressive Disorder – Diagnosis & Coding Guide ICD-11 code 6A71 identifies Recurrent Depressive Disorder, a condition characterised by at least two distinct depressive episodes separated by remission intervals. The World Health Organization’s ICD-11 classification, effective since January 2022, introduced structural changes that affect how clinicians document episode severity, psychotic features, and treatment […]
ICD-11 GC08: Urinary Tract Infection Guide (2026)

ICD-11 GC08: Urinary Tract Infection Guide (2026) The transition to ICD-11 brings fundamental changes to how healthcare providers document urinary tract infections. The World Health Organization’s ICD-11 code GC08 classifies urinary tract infections when the anatomical site is not specified, replacing ICD-10’s N39.0. When the site is known, ICD-11 provides separate codes for cystitis and […]
ICD-11 FA90: Infection of Vertebra (Primary Care Guide)

ICD-11 FA90 Infection of Vertebra: Primary Care Overview ICD-11 FA90 infection of vertebra is the diagnostic classification for bacterial, fungal, or mycobacterial infections affecting the vertebral column. This code encompasses vertebral osteomyelitis, discitis, and spondylodiscitis-conditions that primary care physicians must recognise early to prevent severe complications including spinal cord compression, epidural abscess, and irreversible neurological […]
ICD-11 5A40: Intermediate Hyperglycaemia (Primary Care Guide)

ICD-11 5A40: Intermediate Hyperglycaemia (Prediabetes) — Definition and Clinical Context ICD-11 code 5A40 represents intermediate hyperglycaemia—clinically synonymous with prediabetes—a metabolic state between normal glucose regulation and type 2 diabetes mellitus. This diagnostic classification captures patients with impaired fasting glucose (5A40.0), impaired glucose tolerance (5A40.1), or elevated HbA1c levels that do not meet diabetes thresholds. The […]
ICD-11 8A00: Parkinsonism Diagnostic Code Guide

Short Introduction ICD-11 8A00: Parkinsonism within the Diseases of the Nervous System chapter represents the World Health Organization’s updated classification system for movement disorders characterised by bradykinesia, rigidity, and tremor. This diagnostic code replaces ICD-10 codes G20 (Parkinson’s disease) and G21 (Secondary parkinsonism), introducing a pre-coordinated subcode structure that allows clinicians to specify etiology and […]
ICD-11 5A00: Hypothyroidism Diagnosis & Coding Guide

ICD-11 5A00: Hypothyroidism Diagnosis & Coding Guide The World Health Organization’s ICD-11 classification system introduces significant structural changes for endocrine disorder coding. ICD-11 5A00 serves as the foundation code for hypothyroidism, replacing the fragmented ICD-10 approach with a more granular and clinically aligned framework. For endocrinology practices, understanding this transition matters for three reasons: accurate […]
ICD-11 CA22: Chronic Obstructive Pulmonary Disease (COPD)

What Is ICD-11 CA22 COPD? ICD-11 CA22 COPD is the World Health Organization’s new diagnostic code for chronic obstructive pulmonary disease under the 11th revision of the International Classification of Diseases. This code replaces the ICD-10-CM J44 series used across most healthcare systems since the 1990s. According to the WHO ICD-11 browser, CA22 offers enhanced […]