FY2027 ICD-10-CM reference
I67.6: Nonpyogenic thrombosis of intracranial venous system
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Nonpyogenic thrombosis of intracranial venous system. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Billable code. Verified against the official FY2027 order file.
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: I00-I99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: I00-I99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: I00-I99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: I00-I99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: I00-I99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: I00-I99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: I00-I99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: I00-I99 (chapter, inherited).
Excludes2
systemic connective tissue disorders (M30-M36)
Source: I00-I99 (chapter, inherited).
Excludes2
transient cerebral ischemic attacks and related syndromes (G45.-)
Source: I00-I99 (chapter, inherited).
Instructional note
code to identify presence of:
Source: I60-I69 (section, inherited).
Instructional note
alcohol abuse and dependence (F10.-)
Source: I60-I69 (section, inherited).
Instructional note
exposure to environmental tobacco smoke (Z77.22)
Source: I60-I69 (section, inherited).
Instructional note
history of tobacco dependence (Z87.891)
Source: I60-I69 (section, inherited).
Instructional note
hypertension (I10-I1A)
Source: I60-I69 (section, inherited).
Instructional note
occupational exposure to environmental tobacco smoke (Z57.31)
Source: I60-I69 (section, inherited).
Instructional note
tobacco dependence (F17.-)
Source: I60-I69 (section, inherited).
Instructional note
tobacco use (Z72.0)
Source: I60-I69 (section, inherited).
Excludes1
traumatic intracranial hemorrhage (S06.-)
Source: I60-I69 (section, inherited).
Excludes1
Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
Source: I67 (category, inherited).
Excludes1
Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)
Source: I67 (category, inherited).
Excludes2
sequelae of the listed conditions (I69.8)
Source: I67 (category, inherited).
Instructional note
Nonpyogenic thrombosis of cerebral vein
Source: I67.6 (self, direct).
Instructional note
Nonpyogenic thrombosis of intracranial venous sinus
Source: I67.6 (self, direct).
Excludes1
nonpyogenic thrombosis of intracranial venous system causing infarction (I63.6)
Source: I67.6 (self, direct).
Compare the FY2027 additions, removals and billable-status changes
What does I67.6 mean in FY2027?
The official ICD-10-CM descriptor is Nonpyogenic thrombosis of intracranial venous system. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is I67.6 billable in FY2027?
The FY2027 order file marks I67.6 as billable. Check the complete Tabular instructions and documentation before assigning it.
Does I67.6 map to an HCC?
I67.6 has no CMS-HCC V28 category in the CMS 2027 Initial ICD-10-CM Mappings (payment year 2027, 2026 dates of service). Under the PY2026 CMS mapping; CMS 2027 initial file unchanged: no ESRD category; no RxHCC category. Coefficients for these models are pending verification for payment year 2027. CMS-HCC V24, PACE and HHS-HCC mappings are still pending verification for FY2027.
Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.
Review the FY2026 April edition