ICD-10 M45.1: Upper cervical ankylosing spondylitis

ICD-10 code M45.1 is a billable diagnosis code for ankylosing spondylitis of the occipito-atlanto-axial region, where the base of the skull meets the top two cervical vertebrae (C1 and C2). Coders assign it when the clinical note names this specific joint region, not a general ankylosing spondylitis diagnosis. Practice management software like Pabau won’t select […]
ICD-10 code S82.61XN: Lateral malleolus fracture, right fibula

ICD-10 code S82.61XN is a billable, specific diagnosis code for a displaced fracture of the lateral malleolus of the right fibula, at a subsequent encounter for an open fracture classified as Gustilo-Anderson type IIIA, IIIB, or IIIC, with nonunion. It’s valid for fiscal year 2026 and sits within the S82 category for lower leg fractures, […]
ICD-10 code M43.6: Torticollis diagnosis and billing reference

ICD-10 code M43.6 represents Torticollis in the CDC/NCHS ICD-10-CM browser. It is a billable/specific code, meaning it carries sufficient detail for claim submission without requiring a more granular child code. The 2026 edition became effective October 1, 2025 and is valid through September 30, 2026 for HIPAA-covered transactions. The code sits within Chapter 13 of […]
ICD-10 Code S93.619A: Sprain of tarsal ligament guide

ICD-10 Code S93.619A: definition and clinical description Most foot sprain denials trace back to a single mistake: using the wrong subcategory code. S93.619A resolves this for tarsal ligament injuries of the foot by providing a specific, billable diagnosis that separates foot sprain coding from the more commonly searched ankle sprain codes. ICD-10 Code S93.619A is […]
ICD-10 Code E50.1: Vitamin A deficiency with Bitot’s spot

ICD-10 Code E50.1 is a billable, specific ICD-10-CM code for Vitamin A deficiency with Bitot’s spot and conjunctival xerosis. Both findings must be documented together, since Vitamin A deficiency with only conjunctival xerosis maps to E50.0 instead. The 2026 edition became effective October 1, 2025, under the standard annual ICD-10-CM update cycle maintained by NCHS. […]
ICD-10 Code C55: Malignant neoplasm of uterus, part unspecified

ICD-10 Code C55: definition, billable status, and 2026 effective date ICD-10 Code C55 is the billable ICD-10-CM code for malignant neoplasm of uterus, part unspecified. It applies when a uterine malignancy is confirmed but the specific anatomical site within the uterus is not documented. Payers scrutinize C55 claims closely, because many uterine cancers are diagnosable […]
ICD-10 code M95.2: Other acquired deformity of head

ICD-10 code M95.2 is a billable ICD-10-CM code for other acquired deformity of head. It applies when a head deformity develops after birth from trauma, surgery, disease progression, or chronic mechanical pressure, and doesn’t fit a named condition like cauliflower ear (M95.1) or a congenital diagnosis. This reference covers billable status, clinical meaning, synonyms, coding […]
ICD-10 Code O07.1: Delayed or excessive hemorrhage after failed termination

ICD-10 Code O07.1 is the billable ICD-10-CM code for delayed or excessive hemorrhage following a failed attempted termination of pregnancy. It sits under the O07 category, which covers every complication of an unsuccessful termination attempt: Infection, embolism, hemorrhage, or none at all. O07.1 is the specific child code for the hemorrhagic and coagulopathic presentations. Coders […]
ICD-10 Code I15.2: Hypertension secondary to endocrine disorders

ICD-10 Code I15.2 is the billable ICD-10-CM diagnosis code for hypertension secondary to endocrine disorders, effective for FY2026. It applies when high blood pressure has a confirmed hormonal cause, such as pheochromocytoma, Cushing’s syndrome, primary hyperaldosteronism, or hyperthyroidism, rather than being idiopathic. Coders sometimes reach for I15.2 in the wrong situations: Without a documented endocrine […]
ICD-10 code M27.2: Inflammatory conditions of jaws

ICD-10 code M27.2 is a billable, specific code for inflammatory conditions of jaws – covering osteitis, osteomyelitis, osteoradionecrosis, and periostitis of the jaw, plus sequestrum of jaw bone. Oral surgery, dental, and maxillofacial practices assign it when the clinical note names one of these five conditions, not just symptoms like jaw pain or swelling. The […]