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S01.85XD ICD-10-CM Code: Open bite of other part of head, subsequent encounter

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Open bite of other part of head, subsequent encounter is a billable ICD-10-CM diagnosis code (S01.85D).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S01.85XD 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

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Bite of other part of head NOS

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

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 Compared Codes

The official Excludes notes on S01.85XD name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Other codes that name S01.85XD or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

1 Excludes1 notes: S00 (via S01.-).

3 Code Also instructions: S04 (via S01.-), S06 (via S01.-), S09.1 (via S01.-).

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 2 MS-DRGs: DRG 949 (MDC 23), DRG 950 (MDC 23).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):INJ048 — Open wounds of head and neck, subsequent encounter (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same injury, other encounter phase

Same injury, coded at a different phase of treatment via the 7th character.

S01.85XA — Open bite of other part of head, initial encounter Compare S01.85XD vs S01.85XA →, S01.85XS — Open bite of other part of head, sequela

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Open wounds of head and neck, subsequent encounter).

S01.532D — Puncture wound without foreign body of oral cavity, subsequent encounter, S01.541D — Puncture wound with foreign body of lip, subsequent encounter, S01.542D — Puncture wound with foreign body of oral cavity, subsequent encounter, S01.551D — Open bite of lip, subsequent encounter, S01.552D — Open bite of oral cavity, subsequent encounter, S01.80XD — Unspecified open wound of other part of head, subsequent encounter, S01.81XD — Laceration without foreign body of other part of head, subsequent encounter, S01.82XD — Laceration with foreign body of other part of head, subsequent encounter, S01.83XD — Puncture wound without foreign body of other part of head, subsequent encounter, S01.84XD — Puncture wound with foreign body of other part of head, subsequent encounter, S01.90XD — Unspecified open wound of unspecified part of head, subsequent encounter, S01.91XD — Laceration without foreign body of unspecified part of head, subsequent encounter, S01.92XD — Laceration with foreign body of unspecified part of head, subsequent encounter, S01.93XD — Puncture wound without foreign body of unspecified part of head, subsequent encounter, S01.94XD — Puncture wound with foreign body of unspecified part of head, subsequent encounter, S01.95XD — Open bite of unspecified part of head, subsequent encounter, S05.20XD — Ocular laceration and rupture with prolapse or loss of intraocular tissue, unspecified eye, subsequent encounter, S05.21XD — Ocular laceration and rupture with prolapse or loss of intraocular tissue, right eye, subsequent encounter, S05.22XD — Ocular laceration and rupture with prolapse or loss of intraocular tissue, left eye, subsequent encounter, S05.30XD — Ocular laceration without prolapse or loss of intraocular tissue, unspecified eye, subsequent encounter, +136 more

Contextual Map

Every relationship of S01.85XD in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • S00-T88 — Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) (S00-T88) [Hierarchy]
  • S00-S09 — Injuries to the head [Hierarchy]

Referenced by Excludes1 notes

  • S00 — Superficial injury of head [Excludes1](via S01.-): “open wound of head (S01.-)” · check together

Referenced by Code Also instructions

  • S04 — Injury of cranial nerve [Code Also](via S01.-): “open wound of head (S01.-)” · check together
  • S06 — Intracranial injury [Code Also](via S01.-): “open wound of head (S01.-)” · check together
  • S09.1 — Injury of muscle and tendon of head [Code Also](via S01.-): “any associated open wound (S01.-)” · check together

Clinical classification (CCSR)

  • INJ048 — Open wounds of head and neck, subsequent encounter [CCSR]

Potential MS-DRG

  • DRG 949 — AFTERCARE WITH CC/MCC [MS-DRG]: “AFTERCARE WITH CC/MCC (MDC 23)”
  • DRG 950 — AFTERCARE WITHOUT CC/MCC [MS-DRG]: “AFTERCARE WITHOUT CC/MCC (MDC 23)”

MDC crossing · procedures (1235)

  • MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services [MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • F003GKZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Audiovisual Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GMZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Augmentative / Alternative Communication Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GPZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Computer — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GYZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body using Other Equipment — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • F003GZZ — Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body [Same-MDC procedure]: “Communicative/Cognitive Integration Skills Assessment of Neurological System - Whole Body — grouped in MDC 23, the procedure side of this code's crossing.” · check together
  • and 1230 more

Nearest codes (40)

  • S01 — Open wound of head [Sibling]
  • S01.80XD — Unspecified open wound of other part of head, subsequent encounter [Sibling]
  • S01.80XS — Unspecified open wound of other part of head, sequela [Sibling]
  • S01.81 — Laceration without foreign body of other part of head [Sibling]
  • S01.81XA — Laceration without foreign body of other part of head, initial encounter [Sibling]
  • S01.81XD — Laceration without foreign body of other part of head, subsequent encounter [Sibling]
  • S01.81XS — Laceration without foreign body of other part of head, sequela [Sibling]
  • S01.82 — Laceration with foreign body of other part of head [Sibling]
  • and 32 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Does S01.85XD require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S01.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S01.85XD in its code family, with their registry titles.

  • S01.84XA — Puncture wound with foreign body of other part of head, initial encounter
  • S01.84XD — Puncture wound with foreign body of other part of head, subsequent encounter
  • S01.84XS — Puncture wound with foreign body of other part of head, sequela
  • S01.85 — Open bite of other part of head
  • S01.85XA — Open bite of other part of head, initial encounter
  • S01.85XS — Open bite of other part of head, sequela
  • S01.9 — Open wound of unspecified part of head
  • S01.90 — Unspecified open wound of unspecified part of head
  • S01.90XA — Unspecified open wound of unspecified part of head, initial encounter
  • S01.90XD — Unspecified open wound of unspecified part of head, subsequent encounter

View all codes in the S01 family