S01.20 is the authoritative medical code for Unspecified open wound of nose. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified open wound of nose (ICD-10-CM S01.20), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Unspecified open wound of nose is a non-billable ICD-10-CM category code S01.20. A more specific billable subcode must be selected for claims submission. Includes: injuries of ear; injuries of eye; injuries of face any part; injuries of gum; injuries of jaw; injuries of oral cavity; injuries of palate; injuries of periocular area; injuries of scalp; injuries of temporomandibular joint area; injuries of tongue; injuries of tooth. Excludes1 (not coded here): open skull fracture (S02.- with 7th character B). Excludes2 (not included here): injury of eye and orbit S05.-; traumatic amputation of part of head S08.-; 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. Code also: any associated:; injury of cranial nerve S04.-; injury of muscle and tendon of head S09.1-; intracranial injury S06.-; wound infection; for any associated infection. 7th character: The appropriate 7th character is to be added to each code from category S01.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S01.20 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries of ear
- injuries of eye
- injuries of face any part
- injuries of gum
- injuries of jaw
- injuries of oral cavity
- injuries of palate
- injuries of periocular area
- injuries of scalp
- injuries of temporomandibular joint area
- injuries of tongue
- injuries of tooth
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- open skull fracture (S02.- with 7th character B)
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- injury of eye and orbit S05.-
- traumatic amputation of part of head S08.-
- 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
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated:
- injury of cranial nerve S04.-
- injury of muscle and tendon of head S09.1-
- intracranial injury S06.-
- wound infection
- for any associated infection
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S01.20 be billed directly?
No. S01.20 (Unspecified open wound of nose) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S01.20 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S01.
What can't be coded together with S01.20?
Per official ICD-10-CM Excludes1 instructions, S01.20 must not be reported together with: open skull fracture (S02.- with 7th character B).
Can S01.20 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S01.20 and the following are not considered part of each other and may both be reported when both conditions are present: injury of eye and orbit (S05.-); traumatic amputation of part of head (S08.-); burns and corrosions (T20-T32); effects of foreign body in ear (T16).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S01.20 in its code family, with their registry titles.
- S01 — Open wound of head
- S01.0 — Open wound of scalp
- S01.00 — Unspecified open wound of scalp
- S01.00XA — Unspecified open wound of scalp, initial encounter
- S01.00XD — Unspecified open wound of scalp, subsequent encounter
- S01.00XS — Unspecified open wound of scalp, sequela
- S01.01 — Laceration without foreign body of scalp
- S01.01XA — Laceration without foreign body of scalp, initial encounter
- S01.01XD — Laceration without foreign body of scalp, subsequent encounter
- S01.01XS — Laceration without foreign body of scalp, sequela
View all 40 codes in the S01 family
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Wound, open, head, nose
- Wound, open, nose (septum) (sinus)