ICDcodes.org
FY2027

R93.0 — Abnormal findings on diagnostic imaging of skull and head, not elsewhere classified

BillableUnspecified

Is R93.0 billable?

Yes, but R93.0 is an unspecified code. R93.0 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, R93.0 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting R93.0 — the more specific alternatives are listed below.

R93.0 at a glance

CodeR93.0
DescriptionAbnormal findings on diagnostic imaging of skull and head, not elsewhere classified
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does R93.0 group to?

R93.0 sits in MDC 01 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 091Other Disorders of Nervous System with MCCmedical
  • 092Other Disorders of Nervous System with CCmedical
  • 093Other Disorders of Nervous System without CC/MCCmedical

How is R93.0 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to R93.0. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Cistern, subarachnoid
  • Cyst › subarachnoid intrasellar (colloid) (mucous) (simple) (retention)
  • Enlargement, enlarged › pituitary fossa
  • Enlargement, enlarged › sella turcica
  • Findings, abnormal, inconclusive, without diagnosis › pneumoencephalogram
  • Findings, abnormal, inconclusive, without diagnosis › ventriculogram
  • Abnormal, abnormality, abnormalities › diagnostic imaging › head
  • Abnormal, abnormality, abnormalities › diagnostic imaging › skull
  • Findings, abnormal, inconclusive, without diagnosis › radiologic › head
  • Findings, abnormal, inconclusive, without diagnosis › radiologic › skull

Excludes1 — never code together

The conditions below can never be reported together with R93.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • intracranial space-occupying lesion found on diagnostic imaging (R90.0)

Excludes1 — never code together — inherited from R90-R94

The conditions below can never be reported together with R93.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • abnormal findings on antenatal screening of mother (O28.-)
  • diagnostic abnormal findings classified elsewhere - see Alphabetical Index

Excludes2 — not included here — inherited from Chapter 18

The conditions below are not part of R93.0, but a patient may have both at the same time. When documentation supports it, R93.0 and the excluded code may both be reported.

  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

How long has R93.0 existed?

R93.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with R93.0?

ICD-10-CM declares these codes mutually exclusive with R93.0 — exactly one of each pair can be correct for a given encounter.

What other codes are in the R93 family? (9)