2026 ICD-10-CM Diagnosis Code S01Open wound of head
S01 is a non-billable ICD-10-CM category code for open wound of head, so it cannot be submitted on claims. Use a more specific code from this category instead, such as S01.00XA, S01.00XD, S01.00XS, and S01.01XA.
Code Identity
Code Classification
Specific Coding for Open wound of headOverview
Non-specific codes like S01 require more characters. Use one of these billable codes instead:
S01.0 for Open wound of scalp
S01.00 for Unspecified open wound of scalp
S01.01 for Laceration without foreign body of scalp
S01.02 for Laceration with foreign body of scalp
S01.03 for Puncture wound without foreign body of scalp
S01.04 for Puncture wound with foreign body of scalp
S01.05 for Open bite of scalp
S01.1 for Open wound of eyelid and periocular area
S01.10 for Unspecified open wound of eyelid and periocular area
S01.11 for Laceration without foreign body of eyelid and periocular area
S01.12 for Laceration with foreign body of eyelid and periocular area
S01.13 for Puncture wound without foreign body of eyelid and periocular area
S01.14 for Puncture wound with foreign body of eyelid and periocular area
S01.15 for Open bite of eyelid and periocular area
S01.2 for Open wound of nose
S01.20 for Unspecified open wound of nose
S01.21 for Laceration without foreign body of nose
S01.22 for Laceration with foreign body of nose
S01.23 for Puncture wound without foreign body of nose
S01.24 for Puncture wound with foreign body of nose
S01.25 for Open bite of nose
S01.3 for Open wound of ear
S01.30 for Unspecified open wound of ear
S01.31 for Laceration without foreign body of ear
S01.32 for Laceration with foreign body of ear
S01.33 for Puncture wound without foreign body of ear
S01.34 for Puncture wound with foreign body of ear
S01.35 for Open bite of ear
S01.4 for Open wound of cheek and temporomandibular area
S01.40 for Unspecified open wound of cheek and temporomandibular area
S01.41 for Laceration without foreign body of cheek and temporomandibular area
S01.42 for Laceration with foreign body of cheek and temporomandibular area
S01.43 for Puncture wound without foreign body of cheek and temporomandibular area
S01.44 for Puncture wound with foreign body of cheek and temporomandibular area
S01.45 for Open bite of cheek and temporomandibular area
S01.5 for Open wound of lip and oral cavity
S01.50 for Unspecified open wound of lip and oral cavity
S01.51 for Laceration of lip and oral cavity without foreign body
S01.52 for Laceration of lip and oral cavity with foreign body
S01.53 for Puncture wound of lip and oral cavity without foreign body
S01.54 for Puncture wound of lip and oral cavity with foreign body
S01.55 for Open bite of lip and oral cavity
S01.8 for Open wound of other parts of head
S01.80 for Unspecified open wound of other part of head
S01.81 for Laceration without foreign body of other part of head
S01.82 for Laceration with foreign body of other part of head
S01.83 for Puncture wound without foreign body of other part of head
S01.84 for Puncture wound with foreign body of other part of head
S01.85 for Open bite of other part of head
S01.9 for Open wound of unspecified part of head
S01.90 for Unspecified open wound of unspecified part of head
S01.91 for Laceration without foreign body of unspecified part of head
S01.92 for Laceration with foreign body of unspecified part of head
S01.93 for Puncture wound without foreign body of unspecified part of head
S01.94 for Puncture wound with foreign body of unspecified part of head
S01.95 for Open bite of unspecified part of head
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Open wound of head (S01). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code Also
- any associated:
- injury of cranial nerve S04
- injury of muscle and tendon of head S09.1
- intracranial injury S06
- wound infection
Type 1 Excludes
- open skull fracture S02
Type 2 Excludes
7th Character Note
- The appropriate 7th character is to be added to each code from category S01
7th Character
- A - initial encounter
- D - subsequent encounter
- S - sequela
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
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.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
Indicates that a seventh character is to be assigned to codes in a subcategory.
Patient EducationClinical
Wounds and Injuries
An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
