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S06.302S vs S09.90

S06.302S (Unspecified focal traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, sequela) compared with S09.90 (Unspecified injury of head), from the official CMS tabular data.

Summary

These codes should not be reported together because S06.302S’s tabular entry lists S09.90 under Excludes1.

Official rule
What is different?

The conditions named and billing status.S06.302S is “Unspecified focal traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, sequela”; S09.90 is “Unspecified injury of head”. S09.90 is a non-billable header; S06.302S is billable.

Registry fact

Can these codes be reported together?

No.S06.302S’s entry carries an Excludes1 note covering S09.90: “head injury NOS (S09.90)”. Both may be reported only when the documentation shows the two conditions are unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes1 relationship?

Yes.S06.302S’s tabular entry: “head injury NOS (S09.90)”. The note covers S09.90.

Official ruleGuide: Excludes1 vs Excludes2

Is there an Excludes2 relationship?

None.Neither entry carries an Excludes2 note that names the other code. S06.302S carries 11 Excludes2 notes and S09.90 carries 9 Excludes2 notes covering other codes; the side-by-side table quotes them.

Official rule

Is one more specific?

Not comparable.The codes sit in different categories; specificity is only comparable within one category.

Is one a parent or header code?

One is a header.S09.90 is a non-billable header, but S06.302S is not one of its subdivisions.

Registry fact

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Excludes1 — generally not reported together

Excludes1 conflict

S06.302S
Unspecified focal traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, sequela
↔
S09.90
Unspecified injury of head

What we found

No — do not report together.S06.302S carries an Excludes1 note covering S09.90: “head injury NOS (S09.90)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

What to review

Report one of the two. Both may be reported only when the documentation shows the two conditions are unrelated to each other.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

An Excludes1 note means the two conditions are not ordinarily reported together for the same encounter, because the classification treats them as mutually exclusive forms of the same condition. The documented exception is when the two conditions are unrelated to each other.

Source / rule

CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a

Official guidance behind these answers

  • Section I.A.12.a — Excludes1 · applies to: Excludes1

    A type 1 Excludes note is a pure excludes note. It means “NOT CODED HERE!” An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition. An exception to the Excludes1 definition is the circumstance when the two conditions are unrelated to each other. If it is not clear whether the two conditions involving an Excludes1 note are related or not, query the provider. For example, code F45.8, Other somatoform disorders, has an Excludes1 note for "sleep related teeth grinding (G47.63)," because "teeth grinding" is an inclusion term under F45.8. Only one of these two codes should be assigned for teeth grinding. However psychogenic dysmenorrhea is also an inclusion term under F45.8, and a patient could have both this condition and sleep related teeth grinding. In this case, the two conditions are clearly unrelated to each other, and so it would be appropriate to report F45.8 and G47.63 together.

    ICD-10-CM Official Guidelines FY2026

Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum

Side by side

S06.302SUnspecified focal traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, sequelaS09.90Unspecified injury of head
Billing statusBillableNon-billable header

Report instead: S09.90XA, S09.90XD, S09.90XS

ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionUnspecified focal traumatic brain injury with loss of consciousness of 31 minutes to 59 minutes, sequela is a billable ICD-10-CM diagnosis code (S06.302S).Unspecified injury of head is a non-billable ICD-10-CM category code (S09.90).
7th characterThe appropriate 7th character is to be added to each code from category S06, except as noted belowThe appropriate 7th character is to be added to each code from category S09
Includes
traumatic brain injury
injuries of ear
injuries of eye
injuries of face [any part]
injuries of ear
injuries of eye
injuries of face [any part]
injuries of gum
Excludes1
head injury NOS (S09.90)
brain injury NOS (S06.9-)
head injury NOS with loss of consciousness (S06.9-)
intracranial injury NOS (S06.9-)
Excludes2
any condition classifiable to S06.4-S06.6
focal cerebral edema (S06.1)
burns and corrosions (T20-T32)
effects of foreign body in ear (T16)
effects of foreign body in larynx (T17.3)
effects of foreign body in mouth NOS (T18.0)
effects of foreign body in nose (T17.0-T17.1)
effects of foreign body in pharynx (T17.2)
effects of foreign body on external eye (T15.-)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)
burns and corrosions (T20-T32)
effects of foreign body in ear (T16)
effects of foreign body in larynx (T17.3)
effects of foreign body in mouth NOS (T18.0)
effects of foreign body in nose (T17.0-T17.1)
effects of foreign body in pharynx (T17.2)
effects of foreign body on external eye (T15.-)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)
Use additional code
code, if applicable, for traumatic brain compression or herniation (S06.A-)
code, if applicable, to identify mild neurocognitive disorders due to known physiological condition (F06.7-)
—
Code also
any associated:
open wound of head (S01.-)
skull fracture (S02.-)
for any associated infection
for any associated infection

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

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Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources