ICD-10 Code M36.8: Systemic connective tissue disorders
ICD-10 Code M36.8 covers systemic disorders of connective tissue that arise as manifestations of other diseases classified elsewhere in ICD-10-CM. It sits within the musculoskeletal system chapter (M00-M99), under the M30-M36 block for systemic connective tissue disorders. Per the CMS ICD-10 codes guidance, M36.8 is a billable, specific code valid for submission on HIPAA-covered transactions […]
ICD-10 Code M45.5: Ankylosing spondylitis of thoracolumbar region
ICD-10 Code M45.5 is a billable, specific code for ankylosing spondylitis of the thoracolumbar region, the T12-L1 junction where the thoracic and lumbar spine meet. According to the Centers for Medicare and Medicaid Services (CMS), M45.5 is valid for all HIPAA-covered transactions in FY2026. This reference covers the code’s definition, billable status, synonyms, the full […]
ICD-10 Code M53.9: Dorsopathy, unspecified
ICD-10 Code M53.9 is a billable ICD-10-CM code for dorsopathy, unspecified — a spinal disorder documented without enough detail for a more specific code. Payers scrutinize unspecified spine codes closely, so using M53.9 correctly means knowing exactly when it applies and what documentation needs to support it. This reference covers the billable status, clinical meaning, […]
ICD-10 Code H04.9: Disorder of lacrimal system, unspecified
ICD-10 Code H04.9 is a billable ICD-10-CM code for disorder of lacrimal system, unspecified. It’s the code coders reach for when a lacrimal complaint is documented but the record doesn’t identify which structure is affected or what’s causing it. This reference covers ICD-10 Code H04.9 in full: its billable status, where it sits in the […]
ICD-10 Code M35.1: Other overlap syndromes
ICD-10 Code M35.1: Definition and clinical description ICD-10 Code M35.1 is a billable ICD-10-CM diagnosis code for other overlap syndromes, connective tissue disease presentations that span two or more autoimmune diseases at once without meeting the full diagnostic criteria for any single one. ICD-10 Code M35.1 is a billable ICD-10-CM diagnosis code under the official […]
ICD-10 code M92.9: Juvenile osteochondrosis, unspecified
ICD-10 code M92.9 is the billable diagnosis code for juvenile osteochondrosis when the clinical record lacks the anatomical detail needed to assign a more specific M92 child code. Submitting it without documentation that rules out a more specific code invites payer scrutiny and denials, so knowing exactly when it applies keeps claims clean. ICD-10 code […]
ICD-10 Code M88.1: Osteitis deformans of vertebrae
ICD-10 Code M88.1 is the billable, specific ICD-10-CM diagnosis code for osteitis deformans of vertebrae, confirmed valid for fiscal year 2026 by the CDC/NCHS ICD-10-CM web tool. It replaces the non-billable parent code M88 whenever documentation confirms the vertebral column as the affected site. Osteitis deformans is the clinical name for Paget’s disease of bone. […]
ICD-10 code M84.9: Disorder of continuity of bone, unspecified
ICD-10 code M84.9 is the billable code for disorder of continuity of bone, unspecified. It applies when a bone abnormality is documented but the record does not specify whether it is a fracture, non-union, malunion, or stress reaction. The code sits within category M84, covering healing complications that don’t fit a more specific code elsewhere […]
ICD-10 Code M95.4: Acquired deformity of chest and rib
ICD-10 Code M95.4 is a billable ICD-10-CM diagnosis code for acquired deformity of the chest and rib: a chest wall, costal cartilage, or rib deformity that developed after birth, typically from injury, disease, surgery, or chronic musculoskeletal stress. It falls under the M95 parent category, “Other acquired deformities of musculoskeletal system and connective tissue,” and […]
ICD-10 code M06.1: Adult-onset Still’s disease
A patient comes in with a spiking fever, a fading pink rash, and joints that will not calm down, and adult-onset Still’s disease is what the physician writes on the chart. That diagnosis is easy to code wrong, because M06.1 sits right next to several more familiar rheumatoid arthritis codes in the M06 family, and […]