ICD-10 Code J00: Acute nasopharyngitis (common cold) coding guide
ICD-10 Code J00 is the billable diagnosis code for acute nasopharyngitis, widely known as the common cold. It applies to a self-limiting viral upper respiratory infection affecting the nasal passages and pharynx, and it’s one of the highest-volume diagnosis codes in primary care each year. Coders searching for it as J00 ICD-10, common cold ICD-10, […]
ICD-10 Code V62.3XXS: Heavy Transport Sequela
ICD-10 Code V62.3XXS is a billable code for the sequela, or late effect, of an injury to an unspecified occupant of a heavy transport vehicle in a nontraffic collision with a two- or three-wheeled motor vehicle. It applies once active injury treatment ends and the patient presents with a residual condition tied to that accident. […]
ICD-10 Code M35.6: Relapsing panniculitis (Weber-Christian disease)
ICD-10 Code M35.6 is the billable, specific ICD-10-CM code for relapsing panniculitis (Weber-Christian disease), a rare inflammatory disorder of the subcutaneous fat tissue. It has no child subcodes, so it goes directly on a claim once the relapsing, systemic nature of the condition is documented. ICD-10 Code M35.6: Definition and clinical description The condition presents […]
ICD-10 Code M17.9: Osteoarthritis of knee, unspecified
ICD-10 Code M17.9 is the diagnosis code for osteoarthritis of the knee, unspecified. It applies when the clinical documentation doesn’t identify which knee is affected, or when the presentation doesn’t meet the bilateral primary criteria for M17.0. Clinicians also chart this presentation as gonarthrosis or degenerative joint disease (DJD) of the knee — different terms […]
ICD-10 Code H51.8: Other specified disorders of binocular movement
ICD-10 Code H51.8 is the billable FY2026 code for other specified disorders of binocular movement. It covers conditions that don’t fit the four named codes in the H51 category. This guide explains the code’s clinical definition, when to use H51.8 instead of H51.9, documentation requirements for clean claims, the presbyopia distinction, related crosswalk codes, and […]
ICD-10 Code I45.4: Nonspecific intraventricular block
ICD-10 Code I45.4 is the billable diagnosis code for nonspecific intraventricular block, a condition in which electrical impulses travel through the ventricular conduction system more slowly than normal without meeting the criteria for a named bundle-branch block pattern. It sits within the I45 category (Other conduction disorders) of the ICD-10-CM tabular list, under the broader […]
ICD-10 Code M94.9: Disorder of cartilage, unspecified
ICD-10 Code M94.9 covers a cartilage disorder that’s confirmed but not yet specified by type or location. Coders in orthopedics, physical therapy, sports medicine, and primary care reach for it most often during an initial workup, before imaging narrows the diagnosis. This guide covers the code’s ICD-10-CM hierarchy, its ICD-9 crosswalk, and the documentation payers […]
ICD-10 code D06.1: Carcinoma in situ of exocervix
ICD-10 code D06.1 is the billable, female-only diagnosis code for carcinoma in situ of the exocervix. It covers squamous cell changes confined to the outer, vaginally visible portion of the cervix, with no invasion into surrounding tissue. D06.0 applies to the same finding in the endocervix, and D06.9 applies when the pathology report doesn’t specify […]
ICD-10 code V33.4XXD: Three-wheeled collision
ICD-10 code V33.4XXD is the correct code to report when a patient boarding or alighting a three-wheeled motor vehicle was injured in a collision with a car, pick-up truck, or van, and is now returning for routine follow-up after completing the initial active treatment phase. Misapplying this external cause code at follow-up visits is one […]
ICD-10 Code S85.099S: Popliteal artery injury, sequela
ICD-10 Code S85.099S identifies other specified injury of the popliteal artery, unspecified leg, sequela: the late effect of a healed popliteal artery injury, not the injury itself. It’s a billable ICD-10-CM code, but the 7th character S and unspecified laterality both draw payer scrutiny. This guide covers the 7th character rules, the laterality-specific alternatives, and […]