ICD-10 Code T31.85: Burns involving 80-89% body surface area
ICD-10 Code T31.85 describes burns involving 80-89% of total body surface area (TBSA) where 50-59% of the burned area is third-degree (full thickness). It’s a billable ICD-10-CM code, effective for FY2026, used when both the total burn extent and the depth of tissue damage need separate documentation for accurate MS-DRG assignment. This reference covers the […]
ICD-10 Code T86.892: Other transplanted tissue infection
ICD-10 Code T86.892, “Other transplanted tissue infection,” is the billable code for a documented infection involving transplanted tissue, such as an infected skin allograft or bone graft. Coders select it over sibling codes such as T86.890 (rejection) or T86.899 (unspecified) when the physician’s documentation specifically identifies infection at the transplanted tissue site. The code carries […]
ICD-10 Code M31.4: Aortic arch syndrome [Takayasu]
ICD-10 Code M31.4 is the billable diagnosis code for aortic arch syndrome [Takayasu], the ICD-10-CM label for Takayasu arteritis. It covers confirmed cases of this large-vessel granulomatous vasculitis affecting the aorta and its main branches, effective October 1, 2025 for the 2026 ICD-10-CM edition. This reference covers ICD-10 Code M31.4 in full: its billable status, […]
ICD-10 Code M72.6: Necrotizing fasciitis coding guide (FY2026)
ICD-10 Code M72.6 is the billable diagnosis code for necrotizing fasciitis, a fast-spreading bacterial infection of the fascia. It carries no Excludes1 note, but the “use additional code” instruction for the causative organism is mandatory whenever documentation supports it. Three mistakes account for most M72.6 denials: missing the causative-organism code, missing a documented comorbidity like […]
ICD-10 Code M83.4: Aluminum bone disease and dialysis osteomalacia
ICD-10 Code M83.4 is the billable diagnosis code for aluminum bone disease, also documented as dialysis osteomalacia. It applies to the metabolic bone disorder that develops in patients on long-term dialysis, sitting within the M83 adult osteomalacia block alongside eight sibling codes for other causes of adult bone softening. Coders often default to a generic […]
ICD-10 M81.8: Other Osteoporosis (No Fracture)
ICD-10 Code M81.8 is the billable ICD-10-CM code for other osteoporosis without current pathological fracture, covering every form of osteoporosis that is neither age-related nor accompanied by an active fracture. According to the CDC/NCHS ICD-10-CM web tool, M81.8 became effective on October 1, 2025 as part of the 2026 edition of ICD-10-CM. It is a […]
ICD-10 Code M79.3: Panniculitis, unspecified – [year] guide
ICD-10 Code M79.3 is the billable code for panniculitis, unspecified – inflammation of the subcutaneous fat layer with no documented cause or anatomical site. It’s the code coders default to when the clinical note doesn’t point to a more specific diagnosis, such as lupus panniculitis (L93.2) or neck and back panniculitis (M54.0-). Miscoding into one […]
ICD-10 Code R64: cachexia diagnosis and coding guide
ICD-10 Code R64 (Cachexia) is a billable ICD-10-CM code for a disease-driven wasting syndrome with no named underlying condition. It’s easy to confuse with simple weight loss, malnutrition, or the newer E88.A code for cachexia tied to a specific condition. This guide covers what R64 documents, when to use it instead of E88.A or R63.4, […]
ICD-10 code H90.8: mixed hearing loss guide
ICD-10 Code H90.8 is a billable ICD-10-CM code for mixed conductive and sensorineural hearing loss, unspecified. It applies when the chart confirms both a conductive and a sensorineural component but doesn’t document which ear is affected. H90.8 gets used more often than it should. Audiograms almost always report laterality, so a more specific code, H90.6 […]
ICD-10 Code G55: Nerve root and plexus compressions guide
What is ICD-10 Code G55? ICD-10 Code G55 identifies nerve root and plexus compressions that occur as a manifestation of a disease classified elsewhere in the ICD-10-CM system. It is a billable, specific code valid for HIPAA-covered electronic transactions, meaning it can be submitted directly for reimbursement. The 2026 edition of ICD-10 Code G55 became […]