Is G93.5 a billable ICD-10-CM code?

Yes. G93.5 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does G93.5 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).

What cannot be coded together with G93.5?

G93.5 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

G93.5

G93.5 — Compression of brain

Billable / specific codeICD-10-CM

G93.5 is a billable, specific ICD-10-CM code for compression of brain. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

traumatic compression of brain (S06.A-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Arnold-Chiari type 1 compression of brain
Compression of brain (stem)
Herniation of brain (stem)

Risk adjustment

G93.5 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 202 Coma, Brain Compression/Anoxic Damage0.543 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

G93.5 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56551Billing and Coding: Visual Fields Testing
A56612Billing and Coding: CT of the Head
A56722Billing and Coding: Intraoperative Neurophysiological Testing
A56771Billing and Coding: Special Electroencephalography

How G93.5 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G93.5.

Compression›brain(stem)
Hernia, hernial›foramen magnum
Herniation›brain(stem)
Herniation›cerebral
Pressure›brain
Pressure›cone, tentorial
Syndrome›foramen magnum
Chiari's›malformation›type I
Compression›brain›nontraumatic
Herniation›brain›nontraumatic
Herniation›cerebral›nontraumatic
Malformation›Chiari›Type I

Related codes at this level

Codes that share G93. If G93.5 is not quite right, the correct code is usually one of these.

Questions about G93.5

Is G93.5 a billable ICD-10-CM code?: Yes. G93.5 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does G93.5 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).
What cannot be coded together with G93.5?: G93.5 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.